阅读说明：本技术 一种盾构刀盘中心套内外筒体自动组装设备 (Automatic assembling equipment for inner and outer barrels of central sleeve of shield cutter head ) 是由 陈辉 于 2020-08-26 设计创作，主要内容包括：本发明涉及自动装配技术领域,具体是涉及一种盾构刀盘中心套内外筒体自动组装设备,应用于将内套筒同轴插接在外套筒中,外套筒设置有第一半圆槽和第二半圆槽,自动组装设备包括有重型滑动导轨；工作台,设置在重型滑动导轨活动工作部顶端；多龙门架,包括有第一悬吊龙门架、第二悬吊龙门架和第三悬吊龙门架,均等间距设置在重型滑动导轨顶部；加工设备,包括有高温炉和大型冲压机；定位销回转插接机构,设置在重型滑动导轨一端；旋转台,设置在工作台顶端；三角定位承放架,设置在工作台顶端；三角夹持承放架,设置在工作台；半圆槽定位器,包括有第一激光测距器和第二激光测距器,该装置精度和效率,安全性强。(The invention relates to the technical field of automatic assembly, in particular to automatic assembly equipment for an inner barrel and an outer barrel of a central sleeve of a shield cutter head, which is applied to coaxially inserting an inner sleeve into an outer sleeve, wherein the outer sleeve is provided with a first semicircular groove and a second semicircular groove and comprises a heavy sliding guide rail; the workbench is arranged at the top end of the movable working part of the heavy sliding guide rail; the multi-gantry comprises a first suspension gantry frame, a second suspension gantry frame and a third suspension gantry frame, and is arranged at the top of the heavy sliding guide rail at equal intervals; the processing equipment comprises a high-temperature furnace and a large-scale punching machine; the positioning pin rotary inserting mechanism is arranged at one end of the heavy sliding guide rail; the rotating table is arranged at the top end of the workbench; the triangular positioning bearing frame is arranged at the top end of the workbench; the triangular clamping bearing frame is arranged on the workbench; semicircular groove locator, including first laser range finder and second laser range finder, the device precision and efficiency, the security is strong.)

1. An automatic assembling device for an inner barrel and an outer barrel of a central sleeve of a shield cutter head is applied to coaxially inserting an inner sleeve (B) into an outer sleeve (A), the outer sleeve (A) is provided with a first semicircular groove (A1) and a second semicircular groove (A2), and the automatic assembling device is characterized by comprising a heavy sliding guide rail (1); the workbench (2) is arranged at the top end of the movable working part of the heavy sliding guide rail (1); the multi-gantry (3) comprises a first suspension gantry (3a), a second suspension gantry (3b) and a third suspension gantry (3c), and the gantries and the sliding direction of the heavy sliding guide rail (1) are vertically arranged at the top of the heavy sliding guide rail (1) at equal intervals; the machining equipment (4) comprises a high-temperature furnace (4a) and a large punching machine (4b), wherein the high-temperature furnace (4a) is arranged at the bottom of one end of the second suspension portal frame (3b), and the large punching machine (4b) is arranged on one side of one end of the heavy sliding guide rail (1); the positioning pin rotary inserting mechanism (5) is arranged at one end of the heavy sliding guide rail (1), and in a working state, the positioning pin rotary inserting mechanism (5) is matched with the large punching machine (4b) to insert the positioning pin (C) into the positioning hole formed by the semicircular groove combination; the axis of the rotating platform (6) is vertically arranged at the top end of the working platform (2), the triangular positioning bearing frame (7) is arranged, and the working axis and the rotating platform (6) are coaxially arranged at the top end of the working platform (2); the working axis and the rotating platform (6) are coaxially arranged at the top end of the working platform (2) and positioned at the top of the triangular positioning bearing frame (7); a semicircular groove positioner (9) which comprises a first laser range finder (9a) and a second laser range finder (9b), wherein the first laser range finder (9a) is coaxially arranged at the top end of the fixed part of the rotating table (6), and the working end of the rotary table is horizontally higher than the top end of the rotary part of the rotary table (6) along the radial direction of the rotary table (6), the distance between the working end of the first laser range finder (9a) and the top end of the rotating part of the rotating platform (6) is less than the depth of the semicircular groove, the second laser range finder (9b) and the first laser range finder (9a) are arranged on the top of the workbench (2) on the same vertical surface, the working end of the second laser range finder (9b) is higher than the top end of the outer sleeve (A) under the state of the rotating platform (6), the distance between the working end of the second laser range finder (9b) and the horizontal plane of the top end of the outer sleeve (A) is higher than the depth of the semicircular groove, and the range finders are electrically connected with the controller.

2. The automatic assembling equipment for the inner and outer barrels of the central sleeve of the shield cutterhead according to claim 1, wherein the rotating table (6) comprises: the laser distance measuring device comprises a fixed column (6a), a first laser distance measuring device (9a) and a second laser distance measuring device (9b), wherein the fixed column (6a) vertically penetrates through the workbench (2) and is fixedly connected with the workbench (2) of the workbench; the slewing bearing (6b) is coaxially arranged at the top end of the fixed column (6a), and the inner ring of the slewing bearing is fixedly connected with the fixed column (6 a); the rotating column (6c) is coaxially and fixedly arranged at the top end of the outer ring of the slewing bearing (6b), the top end of the rotating column (6c) is horizontal to the working surface of the working platform (2), and avoidance grooves (6c1) for avoiding working clamping jaws of the second suspension portal frame (3b) are uniformly distributed at the top end of the rotating column (6c) along the axis; and an output shaft of the servo motor (6d) is coaxially and fixedly connected with an input end of the speed reducer (6e), an output end of the speed reducer (6e) is coaxially and fixedly connected with the gear (6f), and the gear (6f) is in meshing transmission with an outer ring of the slewing bearing (6 b).

3. The automatic assembling equipment for the inner and outer barrels of the central sleeve of the shield cutterhead according to claim 1, wherein the triangular positioning bearing frame (7) comprises: the positioning ring (7a) and the rotating table (6) are coaxially arranged at the top end of the workbench (2), an inner ring of the positioning ring (7a) is axially provided with an inclined ring groove (7a1) with the inner diameter gradually increasing from bottom to top, and the positioning ring (7a) is axially and uniformly provided with three radial sliding grooves (7a 2); and the radial abutting devices (7b) are uniformly distributed at the top end of the workbench (2) along the axis of the positioning ring (7a), and the working ends of the radial abutting devices are in sliding fit with the sliding grooves (7a 2).

4. The automatic assembling equipment for the inner and outer barrels of the central sleeve of the shield cutterhead according to claim 1, wherein the triangular clamping and bearing frame (8) comprises: the three fixed seats (8a) are vertically arranged at the top end of the workbench (2) along the axial direction of the rotating table (6); the first hydraulic cylinder (8b) is arranged at the top end of the fixed seat (8a) along the radial direction of the rotating platform (6); the first abutting block (8c) is arranged at the output end of the first hydraulic cylinder (8b), and a guide inclined plane (8c1) is arranged on the inner side of the first abutting block (8 c).

5. The automatic assembling equipment for the inner and outer barrels of the center sleeve of the shield cutter head according to claim 1, wherein the positioning pin rotary inserting mechanism (5) comprises: the rotary cylinder (5a) is arranged at the top of one end of the heavy sliding guide rail (1); a rotary plate (5b) with the center arranged at the rotary working end of the rotary cylinder (5 a); a double-shaft double-rod cylinder (5c) arranged at the bottom side of one end of the rotary plate (5 b); the coaxial connecting plate of the finger cylinder (5d) is fixedly connected with the working end of the double-shaft double-rod cylinder (5 c); the clamping jaw (5e) is arranged at the working end of the finger cylinder (5 d); and the positioning pin vertical feeder (5f) is arranged at one end of the rotary plate (5 b).

6. The automatic assembling equipment for the inner and outer barrels of the center sleeve of the shield cutter head according to claim 1, wherein the positioning pin rotary inserting mechanism (5) further comprises a balancing weight (5g) arranged at the other end of the rotary plate (5b) provided with the double-shaft double-rod cylinder (5 c).

7. The automatic assembling equipment for the inner and outer barrels of the central sleeve of the shield cutterhead according to claim 1, wherein the first suspension portal frame (3a) comprises: the portal frame (3a1) is arranged at the top of the heavy sliding guide rail (1) and is vertical to the conveying direction of the heavy sliding guide rail (1); the linear sliding piece (3a2) is arranged at the top of the portal frame (3a1) in a sliding manner; a rotator (3a3) provided at the bottom end of the linear slider (3a 2); the working end of the rotator (3a3) is vertically downwards and coaxially arranged at the bottom end of the rotator (3a 3); the inner expanding clamping jaw (3a5) is arranged at the bottom end of the output shaft of the long rod hydraulic cylinder (3a 4); the second suspension portal frame (3b) and the third suspension portal frame (3c) are both the same as the first suspension portal frame (3 a).

8. The automatic assembling equipment for the inner and outer barrels of the shield cutterhead center sleeve according to claim 3, wherein dovetail grooves (7a3) are radially arranged on two sides of the sliding groove (7a 2); the radial abutment (7b) comprises: the inclined ring grooves (7a1) are formed, and the second hydraulic cylinders (7b1) are axially and horizontally uniformly distributed at the top end of the workbench (2) along the positioning ring (7 a); the second abutting block (7b2) is arranged on the sliding groove (7a2) in a sliding mode and fixedly connected with the output end of the second hydraulic cylinder (7b1), dovetail wedges (7b3) are arranged on two sides of the second abutting block (7b2), and the dovetail wedges (7b3) are in embedded sliding fit with the dovetail grooves (7a 3).

9. The automatic assembling equipment for the inner and outer barrels of the shield cutterhead center sleeve according to claim 3, wherein the radial abutting device (7b) further comprises a first anti-slip strip (7b4), and the first anti-slip strip (7b4) is vertically arranged on the abutting surface of the second abutting block (7b2) at equal intervals along the axial direction of the positioning ring (7 a).

10. The automatic assembling equipment for the inner barrel body and the outer barrel body of the shield cutterhead center sleeve according to claim 1, characterized in that the triangular clamping and bearing frame (8) further comprises a second anti-slip strip (8d), and the triangular clamping and bearing frame (8) is vertically arranged on the abutting surface of the first abutting block (8c) at equal intervals along the axial direction of the rotating table (6).

Technical Field

The invention relates to the technical field of automatic assembly, in particular to automatic assembling equipment for an inner barrel body and an outer barrel body of a central sleeve of a shield cutter head.

Background

In the manufacturing process of the shield tunneling machine, a driving shaft of a cutter head of the shield tunneling machine is used as a rotating speed and torque output component of the cutter head of the shield tunneling machine and is connected with a cutter head structure of the shield tunneling machine through a central sleeve structure. The shield machine cutter head drive outputs the rotating speed and the torque through the driving shaft → the central sleeve → the cutter head. The shield machine cutter head belongs to a medium-large steel structure part, and a main structure of the shield machine cutter head needs to adopt a welding structure, so that the shield machine cutter head is required to be made of a material with higher strength and high-quality welding performance. The cutter head driving shaft is used as a rotating speed and torque output part of the shield machine cutter head driving, and the manufacturing material of the cutter head driving shaft is required to have high strength and excellent heat treatment performance so as to meet the requirements of strength, toughness and hardness of the cutter head driving shaft. The central sleeve of the cutter connected with the driving shaft needs to meet the requirements of high-quality welding performance connected with the cutter and high-quality heat treatment performance connected with the cutter driving shaft at the same time.

Chinese patent CN201620815225.7 discloses a novel central sleeve structure for connecting a shield cutter head with a drive shaft, which is composed of an outer cylinder body and an inner cylinder body in interference fit, wherein the outer cylinder body is connected with a disk body of the shield cutter head, and the inner cylinder body is connected with the cutter head drive shaft through a spline. The center sleeve structure does not have automatic assembly equipment at present, still needs manual assembly, and has low working efficiency and low safety.

Disclosure of Invention

The technical problem to be solved by the invention is to provide automatic assembling equipment for the inner and outer cylinder bodies of the central sleeve of the shield cutter head.

In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:

an automatic assembling device for an inner barrel and an outer barrel of a central sleeve of a shield cutter head is applied to coaxially inserting an inner sleeve into an outer sleeve, the outer sleeve is provided with a first semicircular groove and a second semicircular groove, and the automatic assembling device comprises a heavy sliding guide rail; the workbench is arranged at the top end of the movable working part of the heavy sliding guide rail; the multi-gantry comprises a first suspension gantry frame, a second suspension gantry frame and a third suspension gantry frame, and the gantry frames and the sliding direction of the heavy sliding guide rail are vertically arranged at the top of the heavy sliding guide rail at equal intervals; the processing equipment comprises a high-temperature furnace and a large-scale punching machine, wherein the high-temperature furnace is arranged at the bottom of one end of the second suspension portal frame, and the large-scale punching machine is arranged on one side of one end of the heavy-duty sliding guide rail; the positioning pin rotary inserting mechanism is arranged at one end of the heavy sliding guide rail, and in a working state, the positioning pin rotary inserting mechanism and the large punching machine are matched with each other to insert the positioning pin into the positioning hole formed by combining the semicircular grooves; the axis of the rotating platform is vertically arranged at the top end of the working platform, the triangular positioning bearing frame is arranged, and the working axis and the rotating platform are coaxially arranged at the top end of the working platform; the working axis and the rotating table are coaxially arranged at the top end of the working table and positioned at the top of the triangular positioning bearing frame; semicircular groove locator, including first laser range finder and second laser range finder, the coaxial setting of first laser range finder is on revolving stage fixed part top, and its work end is higher than revolving stage rotating part top along the radial level of revolving stage, first laser range finder work end is less than apart from revolving stage rotating part top distance semicircular groove degree of depth, second laser range finder sets up at the workstation top with vertical face with first laser range finder, second laser range finder work end is higher than outer sleeve top under the revolving stage device state, second laser range finder work end is higher than apart from outer sleeve top level and is less than semicircular groove degree of depth, the distancer all is connected with the controller electricity.

The revolving stage includes: the first laser range finder is arranged at the top end of the fixed column; the slewing bearing is coaxially arranged at the top end of the fixed column, and the inner ring of the slewing bearing is fixedly connected with the fixed column; the rotating column is coaxially and fixedly arranged at the top end of the outer ring of the slewing bearing, the top end of the rotating column is horizontal to the working surface of the working platform, and avoidance grooves for avoiding the working clamping jaw of the second suspension portal frame are uniformly distributed at the top end of the rotating column along the axis; and an output shaft of the servo motor is coaxially and fixedly connected with an input end of the speed reducer, an output end of the speed reducer is coaxially and fixedly connected with a gear, and the gear is in meshing transmission with an outer ring of the slewing bearing.

Preferably, the triangular positioning support comprises: the positioning ring and the rotating table are coaxially arranged at the top end of the workbench, an inclined ring groove with the inner diameter gradually increasing from bottom to top is axially arranged on the inner ring of the positioning ring, and three radial sliding grooves are axially and uniformly distributed on the positioning ring; the radial butt joint device is uniformly distributed on the top end of the workbench along the axis of the positioning ring, and the working end of the radial butt joint device is in sliding fit with the sliding groove.

Preferably, the triangular clamping and bearing frame comprises: the three fixed seats are vertically arranged at the top end of the workbench along the axial direction of the rotating table; the first hydraulic cylinder is arranged at the top end of the fixed seat along the radial direction of the rotating table; the first butt joint block is arranged at the output end of the first hydraulic cylinder, and a guide inclined plane is arranged on the inner side of the first butt joint block.

Preferably, the locating pin rotary plugging mechanism comprises: the rotary cylinder is arranged at the top of one end of the heavy sliding guide rail; the center of the rotary plate is arranged at the rotary working end of the rotary cylinder; the double-shaft double-rod cylinder is arranged at the bottom side of one end of the rotary plate; the finger cylinder coaxial connecting plate is fixedly connected with the working end of the double-shaft double-rod cylinder; the clamping jaw is arranged at the working end of the finger cylinder; and the positioning pin vertical feeder is arranged at one end of the rotary plate.

Preferably, the positioning pin rotary splicing mechanism further comprises a balancing weight which is arranged at the other end of the rotary plate provided with the double-shaft double-rod cylinder.

Preferably, the first gantry comprises: the portal frame is arranged at the top of the heavy sliding guide rail and is vertical to the conveying direction of the heavy sliding guide rail; the linear sliding piece is arranged at the top of the gantry in a sliding manner; the rotator is arranged at the bottom end of the linear sliding piece; the working end of the rotator is vertically and coaxially arranged at the bottom end of the rotator downwards; the inner expanding clamping jaw is arranged at the bottom end of the output shaft of the long rod hydraulic cylinder; the second suspension portal frame and the third suspension portal frame are both the same as the first suspension portal frame in structure.

Preferably, dovetail grooves are radially arranged on two sides of the sliding groove; the radial butt-joint device comprises: the second hydraulic cylinders are uniformly distributed at the top end of the workbench along the axial direction of the positioning ring; the second butt joint block is arranged on the sliding groove in a sliding mode and fixedly connected with the output end of the second hydraulic cylinder, dovetail wedges are arranged on two sides of the second butt joint block, and the dovetail wedges are in embedded sliding fit with the dovetail grooves.

Preferably, the radial butt joint device further comprises a first anti-slip strip, and the first anti-slip strip is vertically arranged on the butt joint surface of the second butt joint block at equal intervals along the axial direction of the positioning ring.

Preferably, triangle centre gripping holds puts frame still including the second antislip strip, triangle centre gripping holds puts the vertical equidistant setting of frame edge revolving stage axial on first butt piece butt face.

Compared with the prior art, the invention has the beneficial effects that:

the device is high in safety, and the outer sleeve in a high-temperature state is hoisted through the first suspension portal frame, so that manual contact and accidental injury are avoided; the device can set up the outer sleeve on the workstation through revolving stage, triangle location hold frame and first laser range finder coaxially, adjusts the inner sleeve semicircle orifice and the outer sleeve on the semicircle orifice align when hanging in midair through first portal frame and second laser range finder, and the precision of impressing is high.

Drawings

FIG. 1 is an axial cross-sectional view of the finished product;

FIG. 2 is a perspective view of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at D;

FIG. 4 is a side view of the table of the present invention;

FIG. 5 is a cross-sectional view at section E-E of FIG. 4;

FIG. 6 is a perspective view of the turntable of the present invention;

FIG. 7 is a perspective view of the triangulation locating and clamping support of the present invention;

FIG. 8 is a partial exploded perspective view of the triangularly positioned carrier of the present invention;

FIG. 9 is a perspective view of a locating pin swivel insertion mechanism of the present invention;

fig. 10 is a partial enlarged view of fig. 9 at F.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

Referring to fig. 2, the automatic assembling equipment for the inner and outer cylinders of the central sleeve of the shield cutter head is used for coaxially inserting an inner sleeve B into an outer sleeve A, the outer sleeve A is provided with a first semicircular groove A1 and a second semicircular groove A2, and the automatic assembling equipment comprises a heavy sliding guide rail 1; the workbench 2 is arranged at the top end of the movable working part of the heavy sliding guide rail 1; the multi-gantry 3 comprises a first suspension gantry 3a, a second suspension gantry 3b and a third suspension gantry 3c, and the gantries and the heavy-duty sliding guide rail 1 are arranged at the top of the heavy-duty sliding guide rail 1 at equal intervals in the sliding direction; the processing equipment 4 comprises a high-temperature furnace 4a and a large punching machine 4b, wherein the high-temperature furnace 4a is arranged at the bottom of one end of the second suspension portal frame 3b, and the large punching machine 4b is arranged on one side of one end of the heavy sliding guide rail 1; the positioning pin rotating and inserting mechanism 5 is arranged at one end of the heavy sliding guide rail 1, and in a working state, the positioning pin rotating and inserting mechanism 5 and the large punching machine 4b are matched with each other to insert the positioning pin C into the positioning hole formed by combining the semicircular grooves; the axis of the rotating platform 6 is vertically arranged at the top end of the working platform 2, the triangular positioning bearing frame 7 is arranged, and the working axis and the rotating platform 6 are coaxially arranged at the top end of the working platform 2; the triangular clamping bearing frame 8 is arranged, the working axis and the rotating table 6 are coaxially arranged at the top end of the working table 2 and are positioned at the top of the triangular positioning bearing frame 7; semicircular groove locator 9, including first laser range finder 9a and second laser range finder 9b, the coaxial setting of first laser range finder 9a is on 6 fixed part tops of revolving stage, and its working end is higher than 6 rotating part tops of revolving stage along 6 radial levels of revolving stage, first laser range finder 9a working end is less than apart from 6 rotating part top distances of revolving stage semicircular groove degree of depth, second laser range finder 9b sets up at 2 tops of workstation with vertical face with first laser range finder 9a, second laser range finder 9b working end is higher than outer sleeve A top under the revolving stage 6 device state, second laser range finder 9b working end is higher than apart from outer sleeve A top level and is less than semicircular groove degree of depth, the distancer all is connected with the controller electricity.

The multi-gantry frame 3 is used for suspending the outer sleeve A, the inner sleeve B and a finished product, the processing equipment 4 is used for heating the outer sleeve A and coaxially inserting the inner sleeve B into the outer sleeve A, and the semicircular groove positioner 9 is used for positioning the semicircular groove; when the work is started, the second suspension portal frame 3b vertically places the axis of the outer sleeve A in the high-temperature furnace 4a through suspension, the high-temperature furnace 4a heats the outer sleeve A, when the outer sleeve A is heated to a specified temperature, the outer sleeve A is vertically hoisted through the second suspension portal frame 3b, meanwhile, the movable working end of the heavy sliding guide rail 1 is positioned at the bottom of the other end of the second suspension portal frame 3b, the second suspension portal frame 3b vertically places the outer sleeve A in a high-temperature state on the workbench 2, namely at the rotating working end of the workbench 2, the outer sleeve A is coaxial with the rotating working end of the rotating table 6 through the triangular positioning bearing frame 7, the first laser range finder 9a and the rotating table 6 are started, the outer sleeve A rotates at the top end of the rotating table 6, the first laser range finder 9a detects the inner diameter of the outer sleeve A, when the first laser range finder 9a detects that the inner arc of the second semicircular groove A2 in the A is far away from the axis of, the controller controls the rotating platform 6 to stop rotating, and at the moment, the heavy sliding guide rail 1 is positioned and clamped at the top end of the rotating platform 6 through the triangular positioning bearing frame 7; then the heavy sliding guide rail 1 is started, so that the outer sleeve A moves to a bottom plate of a first suspension portal frame 3a, the first suspension portal frame 3a vertically suspends an inner sleeve B to the top of the outer sleeve A, the working end of the first suspension portal frame 3a vertically descends, so that the inner sleeve B coaxially abuts against the top end of the outer sleeve A, the outer sleeve A and the inner sleeve B are not coaxial, the working end of the first suspension portal frame 3a rotates, so that the inner sleeve B synchronously rotates at the top end of the outer sleeve A, a second laser range finder 9B is started to detect a semicircular groove at the bottom end of the outer circumferential surface of the inner sleeve B, when the arc top of the semicircular groove is farthest away from the working end of the second laser range finder 9B, the controller controls the first suspension portal frame 3a to stop rotating, the range finder is in the same vertical plane, so that the semicircular grooves of the outer sleeve A and the inner sleeve B can be, therefore, the positioning pin C is conveniently inserted, the triangular clamping bearing frame 8 is started to enable the inner sleeve B to be fixed at the top end of the outer sleeve A, and the working end of the first suspension portal frame 3a is reset; starting the heavy sliding guide rail 1 to enable the outer sleeve A and the inner sleeve B which are in a vertical state to be positioned at the bottom of the working end of the large punching machine 4B, and starting the large punching machine 4B to enable the inner sleeve B to be coaxially pressed into the outer sleeve A in a clamping state of the triangular clamping and placing frame 8, wherein at the moment, the upper half slots of the sleeve are mutually coaxial; the working end of the large-scale punching machine 4b is reset, the triangular clamping and bearing frame 8 is started to move the positioning pin C in a vertical state to the top end of the positioning hole, then the large-scale punching machine 4b is started to coaxially press the positioning pin C into the positioning hole at the top end, the working end of the rotating platform 6 rotates, and the positioning pin C is sequentially pressed into the positioning hole of the assembly; after the assembly is finished, after the outer sleeve A is cooled, the heavy sliding guide rail 1 moves the finished product to the bottom of one end of a third suspension portal frame 3c, and the positioning pin rotary splicing mechanism 5 and the working end of the triangular positioning bearing frame 7 are reset, so that the third suspension portal frame 3c suspends and conveys the finished product to a specified place.

As shown in fig. 5 and 6, the turntable 6 includes: the fixed column 6a vertically penetrates through the workbench 2 and is fixedly connected with the workbench 2, and the first laser range finder 9a is arranged at the top end of the fixed column 6 a; the slewing bearing 6b is coaxially arranged at the top end of the fixed column 6a, and the inner ring of the slewing bearing is fixedly connected with the fixed column 6 a; the rotating column 6c is coaxially and fixedly arranged at the top end of the outer ring of the slewing bearing 6b, the top end of the rotating column 6c is horizontal to the working surface of the working platform 2, and avoidance grooves 6c1 for avoiding the working clamping jaw of the second suspension portal frame 3b are uniformly distributed at the top end of the rotating column 6c along the axis; an output shaft of the servo motor 6d is coaxially and fixedly connected with an input end of a speed reducer 6e, an output end of the speed reducer 6e is coaxially and fixedly connected with a gear 6f, and the gear 6f is in meshing transmission with an outer ring of the slewing bearing 6 b.

The avoiding groove 6c1 is used for avoiding that the working end of the clamping jaw of the second suspension portal frame 3b cannot be loosened in the state of clamping the outer sleeve A, the outer sleeve A is vertically placed at the top end of the rotating column 6c, and is coaxial with the rotating column 6c in the state of being restrained by the working end of the triangular positioning support frame 7, the second semicircular groove A2 needs to be positioned, the working end of the first laser range finder 9a needs to be positioned in the rotating state of the outer sleeve A, the servo motor 6d is started, so that the output end of the servo motor converts the torsion into the torsion capable of driving the outer ring of the slewing bearing 6b to rotate through the speed reducer 6e, the gear 6f transmits the torsion output by the speed reducer 6e to the outer ring of the slewing bearing 6b, the slewing bearing 6b is fixedly connected with the inner ring of the workbench 2 through the fixed column 6a, so that the inner ring of the slewing bearing 6b rotates relative, thereby causing the outer sleeve a to rotate on the table 2 and facilitating the positioning of the second semi-circular groove a2 by the first laser rangefinder 9 a.

As shown in fig. 8, the triangular positioning support 7 comprises: the positioning ring 7a and the rotating table 6 are coaxially arranged at the top end of the workbench 2, an inner ring of the positioning ring 7a is axially provided with an inclined ring groove 7a1 with the inner diameter gradually increasing from bottom to top, and the positioning ring 7a is axially and uniformly provided with three radial sliding grooves 7a 2; and the radial abutting devices 7b are uniformly distributed at the top end of the workbench 2 along the axis of the positioning ring 7a, and the working ends of the radial abutting devices are in sliding fit with the sliding grooves 7a 2.

When the outer sleeve a is placed on the rotary table 6, the bottom end of the outer sleeve a is approximately coaxial with the positioning ring 7a under the guiding action of the inclined ring groove 7a1, the radial abutting device 7B is started, so that the output end slides on the sliding groove 7a2, the working end is abutted on the circumferential surface of the outer sleeve a, and the outer sleeve a is coaxial with the positioning ring 7a through the three-side guiding abutting action, so that the inner sleeve B is conveniently pressed in a coaxial mode.

As shown in fig. 7, the triangular holding rack 8 comprises: the three fixed seats 8a are vertically arranged at the top end of the workbench 2 along the axial direction of the rotating table 6; the first hydraulic cylinder 8b is arranged at the top end of the fixed seat 8a along the radial direction of the rotating platform 6; the first abutting block 8c is arranged at the output end of the first hydraulic cylinder 8b, and a guide inclined surface 8c1 is arranged on the inner side of the first abutting block 8 c.

When the outer sleeve A is coaxially fixed at the top end of the rotating table 6, the inner sleeve B needs to be coaxially fixed at the top end of the outer sleeve A and then is pressed in by the large-scale punching machine 4B, when the inner sleeve B is coaxially abutted against the top end of the outer sleeve A, the first hydraulic cylinder 8B is started, the output end of the first hydraulic cylinder is abutted against the outer circumferential surface of the inner sleeve B through the first abutting block 8c, and the first hydraulic cylinder 8B is fixed at the top end of the workbench 2 through the fixed seat 8a, so that the inner sleeve B is coaxially fixed at the top end of the outer sleeve A, and the large-scale punching machine 4B is.

As shown in fig. 9 and 10, the positioning pin rotating plug-in mechanism 5 includes: the rotary cylinder 5a is arranged at the top of one end of the heavy sliding guide rail 1; a rotary plate 5b, the center of which is arranged at the rotary working end of the rotary cylinder 5 a; a double-shaft double-rod cylinder 5c arranged at the bottom side of one end of the rotary plate 5 b; the finger cylinder 5d coaxial connecting plate is fixedly connected with the working end of the double-shaft double-rod cylinder 5 c; the clamping jaw 5e is arranged at the working end of the finger cylinder 5 d; and the positioning pin vertical feeder 5f is arranged at one end of the rotary plate 5 b.

When inner skleeve B is pressed in outer skleeve A by the coaxial and the relative alignment of half slot is coaxial, start revolving cylinder 5a and make revolving plate 5B gyration, and finger cylinder 5d passes through clamping jaw 5e in advance at a locating pin vertical feeder 5f discharge end centre gripping locating pin C, make locating pin C gyration to assembly locating hole location, start large-scale punching machine 4B, make locating pin C pre-compaction go into after a distance of locating hole, two pole cylinders of biax 5C and finger cylinder 5d working end reset, thereby make revolving plate 5B rotation original position, then large-scale punching machine 4B presses the locating pin into the locating hole completely, make outer skleeve A rotate, thereby in proper order in the assembly top locating hole built-in locating pin.

As shown in fig. 9, the positioning pin rotating and inserting mechanism 5 further includes a weight block 5g disposed at the other end of the rotating plate 5b where the double-shaft double-rod cylinder 5c is disposed.

The balancing weight 5g sets up the other end that sets up biax double-rod cylinder 5c at gyration board 5b to be convenient for balanced biax double-rod cylinder 5c weight, thereby make the structure more stable.

As shown in fig. 3, the first gantry 3a includes: the portal frame 3a1 is arranged at the top of the heavy sliding guide rail 1 and is vertical to the conveying direction of the heavy sliding guide rail 1; the linear sliding piece 3a2 is arranged at the top of the portal frame 3a1 in a sliding manner; a rotator 3a3 provided at the bottom end of the linear slider 3a 2; the rotator 3a3 is provided with a working end which is vertically downwards and coaxially arranged at the bottom end of the rotator 3a 3; the inner expanding clamping jaw 3a5 is arranged at the bottom end of an output shaft of the long rod hydraulic cylinder 3a 4; the second suspension portal frame 3b and the third suspension portal frame 3c are both the same in structure as the first suspension portal frame 3 a.

The linear sliding piece 3a2 slides on the top end of the portal frame 3a1, the long rod hydraulic cylinder 3a4 is driven to enable the inner expansion clamping jaw 3a5 to take out the outer sleeve A in the high-temperature furnace 4a, so that the outer sleeve A can be conveniently conveyed to an assembly table through the sliding of the first suspension portal frame 3a, the rotator 3a3 is used for rotating the inner expansion clamping jaw 3a5, so that the inner expansion clamping jaw 3a5 can extend into the bottom end of the outer sleeve A during clamping so as to lift the outer sleeve A, the outer sleeve A is prevented from being separated from the inner expansion clamping jaw 3a5, and the suspension structure is more stable.

As shown in fig. 8, dovetail grooves 7a3 are radially provided on both sides of the slide groove 7a 2; the radial abutment 7b includes: the inclined ring grooves 7a1 and the second hydraulic cylinders 7b1 are uniformly distributed at the top end of the workbench 2 along the axial direction of the positioning ring 7 a; the second abutting block 7b2 is slidably disposed on the sliding groove 7a2 and fixedly connected with the output end of the second hydraulic cylinder 7b1, dovetail wedges 7b3 are disposed on two sides of the second abutting block 7b2, and the dovetail wedges 7b3 are engaged with the dovetail grooves 7a3 in a sliding fit mode.

When the outer sleeve A is vertically placed in the positioning ring 7a, the second hydraulic cylinder 7B1 is started, the output end of the second hydraulic cylinder pushes the second abutting block 7B2 to slide on the sliding groove 7a2, so that the abutting surface of the second abutting block 7B2 abuts against the outer circumferential surface of the outer sleeve A, the outer sleeve A and the positioning ring 7a are coaxial through three-edge positioning, positioning and pressing into the inner sleeve B are facilitated, the dovetail wedges 7B3 are slidably arranged on the dovetail grooves 7a3, the second abutting block 7B2 can be stably slid in the sliding groove 7a2, and the sliding process is more stable.

As shown in fig. 8, the radial abutment 7b further includes a first anti-slip strip 7b4, and the first anti-slip strip 7b4 is vertically arranged on the abutment surface of the second abutment block 7b2 at equal intervals along the axial direction of the positioning ring 7 a.

The first anti-slip strips 7B4 are vertically arranged on the abutting surface of the second abutting block 7B2 at equal intervals along the axial direction of the locating ring 7a, so that when the second abutting block 7B2 abuts against the outer sleeve A and is pressed into the inner sleeve B, the outer sleeve A cannot rotate, and the pressing precision of the outer sleeve A is prevented from being influenced.

As shown in fig. 7, the triangular clamping and supporting frame 8 further includes a second anti-slip strip 8d, and the triangular clamping and supporting frame 8 is vertically arranged on the abutting surface of the first abutting block 8c at equal intervals along the axial direction of the rotating platform 6.

The triangular clamping and bearing frame 8 is vertically arranged on the abutting surface of the first abutting block 8c at equal intervals along the axial direction of the rotating platform 6, so that the phenomenon that the inner sleeve B rotates when the inner sleeve B is pressed into the outer sleeve A is avoided, and the pressing precision is influenced.

The working principle of the invention is as follows:

the method comprises the following steps: starting the high-temperature furnace 4a to enable the temperature of the outer sleeve A in the high-temperature furnace 4a to rise to a specified temperature;

step two: starting a second suspension portal frame 3b, and hoisting an outer sleeve A in the high-temperature furnace 4a to move to the top of the workbench 2;

step three: the working end of the second suspension portal frame 3b clamps the outer sleeve A and places the outer sleeve A at the top end of the rotating column 6 c;

step four: starting the radial abutting device 7b to enable the output end of the radial abutting device to drive the second abutting block 7b2 to slide in the sliding groove 7a2, so that the outer sleeve A is coaxial with the rotating column 6c under the abutting action of the three-edge radial abutting device 7b, and the radial abutting device 7b is reset after positioning is finished;

step five: starting the servo motor 6d to enable the outer ring of the slewing bearing 6b to rotate relative to the inner ring, enabling the outer sleeve A to rotate on the workbench 2, monitoring the arc top distance of the semicircular groove in real time by the first laser range finder 9a, and closing the servo motor 6d when the maximum distance is detected;

step six: the heavy sliding guide rail 1 moves the workbench 2 to the bottom of a first suspension portal frame 3a, the first suspension portal frame 3a is started to coaxially place an inner sleeve B at the top end of an outer sleeve A, a rotator 3a3 is started, a second laser range finder 9B monitors the half-slot arc top at the bottom end of the excircle axial surface of the inner sleeve B in real time, when the maximum distance is detected, the rotator 3a3 is closed, and a first hydraulic cylinder 8B is started, so that a first butting block 8c moves along the radial direction to clamp the inner sleeve B;

step seven: the heavy sliding guide rail 1 moves the workbench 2 to the bottom of the working end of the large punching machine 4B, the large punching machine 4B is started, so that the inner sleeve B is coaxially pressed into the outer sleeve A by the large punching machine 4B9, and after the inner sleeve B is pressed into the outer sleeve A to a proper depth, the working end of the triangular clamping and placing frame 8 is reset, so that the large punching machine 4B is not prevented from pressing the inner sleeve B into the outer sleeve A completely;

step eight: after punching is finished, a rotary cylinder 5a is started, a finger cylinder 5d clamps a positioning pin C in advance and rotates to the top end of the positioning hole of the assembly, and then a large punching machine 4b is started to press the positioning pin C into the positioning hole in sequence;

step nine: the heavy sliding guide rail 1 moves the workbench 2 to the bottom of a third suspension portal frame 3c, and the third suspension portal frame 3c takes off the finished product from the workbench 2 and sends the finished product to a designated place.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.