阅读说明：本技术 一种在线机械结构加工装置 (Online mechanical structure processingequipment ) 是由 刘永义 杨胜泉 刘宇红 刘静旖 刘惠田 申江朋 刘成钢 于 2021-07-22 设计创作，主要内容包括：一种在线机械结构加工装置,属于机械加工技术领域。技术方案：包括：支承系统、操作机构、回转机构、驱动系统、切削机构,所述操作机构与所述支承系统连接,所述回转机构与所述支承系统可旋转连接,所述驱动系统安装在所述回转机构上、并与所述切削机构连接,所述切削机构与所述回转机构可旋转连接。有益效果:本发明采用在挤压机挤压动梁承压端面修复的处理方式,与现有承压端面变形必须采用楔垫片的中心基准的修复方式进行比较,减少了维修频次,基准恢复精准可靠,提高设备中心基准的恢复效率；缩短了维修时间和降低了维修费用,进一步保证了设备中心基准的恢复及时性和可靠性。(An online mechanical structure processing device belongs to the technical field of machining. The technical scheme is as follows: the method comprises the following steps: the cutting machine comprises a supporting system, an operating mechanism, a slewing mechanism, a driving system and a cutting mechanism, wherein the operating mechanism is connected with the supporting system, the slewing mechanism is rotatably connected with the supporting system, the driving system is arranged on the slewing mechanism and is connected with the cutting mechanism, and the cutting mechanism is rotatably connected with the slewing mechanism. The method has the advantages that the processing mode of repairing the pressure-bearing end face of the extrusion movable beam of the extruder is adopted, and compared with the existing repairing mode that the deformation of the pressure-bearing end face needs to adopt the center reference of the wedge gasket, the method reduces the maintenance frequency, ensures that the reference is accurately and reliably recovered, and improves the recovery efficiency of the center reference of the equipment; the maintenance time is shortened, the maintenance cost is reduced, and the timeliness and the reliability of the restoration of the equipment center reference are further ensured.)

1. An on-line mechanical structure processing device, characterized by comprising: the cutting machine comprises a supporting system, an operating mechanism, a slewing mechanism, a driving system and a cutting mechanism, wherein the operating mechanism is connected with the supporting system, the slewing mechanism is rotatably connected with the supporting system, the driving system is arranged on the slewing mechanism and is connected with the cutting mechanism, and the cutting mechanism is rotatably connected with the slewing mechanism.

2. The in-line mechanical structure processing apparatus of claim 1, wherein the support system comprises: the device comprises an upper cover (1), a support plate (2), a connecting plate (3) and a fixed base (20), wherein the upper cover (1) is installed above the support plate (2), and the support plate (2) is connected with the fixed base (20) through the connecting plate (3).

3. The in-line mechanical structure processing apparatus as set forth in claim 1, wherein the operating mechanism comprises: handle (47), support (49), a plurality of group gear drive module, install support (49) on the bearing system, install handle (47) on support (49), handle (47) with gear drive module connects, a plurality of groups gear drive module is transmission connection in proper order.

4. The in-line mechanical structure processing device of claim 3, wherein the gear transmission module comprises: the gear shaft B (38), the gear C (39), the gear D (40), the gear E (41), the gear F (42), the gear shaft C (43), the gear G (44), the gear shaft D (45), the gear H (46), the gear I (50) and the gear shaft D (51), the gear H (46) is installed on the gear shaft D (45), the gear F (42) and the gear G (44) are installed on the gear shaft C (43), the gear I (50) and the gear E (41) are installed on the gear shaft D (51), the gear C (39) and the gear D (40) are installed on the gear shaft B (38), the gear H (46) is meshed with the gear F (42), the gear G (44) is meshed with the gear I (50), and the gear E (41) is meshed with the gear D (40).

5. The in-line machine structure processing apparatus as claimed in claim 1, wherein said swing mechanism comprises: the bearing comprises a rotary base plate (13), a cover (25), a main shaft cover (26), a rotary main shaft (27), a bearing C (28), a bearing D (29), a lining B (30), a lining C (31), a supporting sleeve B (32), a bearing positioning sleeve (35), a bearing E (36), a bearing cover (37) and a rotary main shaft gear (52), wherein the rotary main shaft gear (52) is installed on the rotary main shaft (27), the bearing E (36) is connected with the rotary main shaft (27), the bearing cover (37) is installed above the bearing E (36), the bearing positioning sleeve (35) is arranged above the joint of the rotary main shaft (27) and a supporting system, the supporting sleeve B (32) is arranged below the joint of the rotary main shaft (27) and the supporting system, the bearing C (28) and the bearing D (29) are installed on the rotary main shaft (27), and the lining B (30) and the lining C (31) are installed above the bearing D (29), the lower end of the rotating main shaft (27) is sequentially connected with a main shaft cover (26), a rotating base plate (13) and a cover (25).

6. The on-line machining device for mechanical structures as claimed in claim 5, further comprising a locking back cap A (33) and a locking back cap B (34), wherein the locking back cap A (33) and the locking back cap B (34) are arranged at the connection of the bearing positioning sleeve (35) and the supporting system.

7. The in-line mechanical structure processing apparatus as set forth in claim 1, wherein the drive system comprises: the motor (18), the gear B (19), the bush A (21), the gear shaft A (23), a motor support (24), a gear J (53), the motor support (24) is installed on the slewing mechanism, the motor (18) is installed above the motor support (24), the motor (18) is connected with the gear shaft A (23), the gear B (19), the bush A (21) and the gear J (53) are arranged on the gear shaft A (23), and the bush A (21) is located between the bush A (21) and the gear J (53).

8. The in-line mechanical structure processing apparatus as set forth in claim 1, wherein the cutting mechanism comprises: the cutter body (4), the rotary cutter body (5), a main shaft A (6), a movable sleeve (16), a gear A (17), a bearing A (7), a bearing B (8) and a supporting sleeve A (11), wherein the gear A (17) is installed at the upper end of the main shaft A (6), the movable sleeve (16) is installed on the gear A (17), the bearing A (7), the bearing B (8) and the supporting sleeve A (11) are installed on the main shaft A (6), the lower end of the main shaft A (6) is connected with the rotary cutter body (5), and the cutter body (4) is installed on the rotary cutter body (5).

9. The in-line mechanical structure processing apparatus of claim 8, further comprising: lock nut A (9), lock nut B (10), position sleeve (12), spacing (14), feed nut (15), the supporting system with the junction installation of main shaft A (6) lock nut A (9) and lock nut B (10), install on the supporting sleeve A (11) position sleeve (12), the last installation of supporting system spacing (14) and feed nut (15), spacing (14) and feed nut (15) are connected.

10. The on-line machine structure processing device according to claim 1, further comprising a weight (48), wherein the rotating mechanism is provided with the weight (48).

Technical Field

The invention belongs to the technical field of machining, and particularly relates to an online machining device for a mechanical structure.

Background

The horizontal copper and copper alloy extruder is a main device for producing copper pipes, copper bars and profiled bars by hot working, and due to the structural characteristics of the device, the extrusion rod support body is subjected to larger impact force and pressure during working, and the pressure-bearing end face of the movable beam is extruded under the combined action of horizontal force and gravity for a long time to generate irregular plastic deformation. The deformation of the pressure-bearing end face can cause the deviation of the central force during the extrusion work, and the wall thickness of the produced pipe product is eccentric and out of tolerance and is scrapped under severe conditions.

The deformation mode of solving the pressure-bearing terminal surface traditionally is: firstly, select suitable eccentric gasket to adjust, it is anomalous because of the pressure-bearing end face deformation, the degree of difficulty is big, does not have accurate compensation hardly. Frequent adjustment is difficult. Secondly, the equipment is disassembled and overhauled, the end face is flattened on a large boring machine in a machining mode, and then a proper flat cushion is selected for compensation.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides an online mechanical structure processing device, which can repair the pressure-bearing end face of an extrusion movable beam, changes the traditional maintenance mode of realizing end face deviation correction by disassembling and overhauling or repeatedly adjusting a wedge gasket, and adopts an online repair device to align and process a flat end face under the condition that equipment is not disassembled to assist in realizing equipment reference recovery by a high-strength flat gasket and ensure that the precision reaches the standard under the working state.

The technical scheme is as follows:

an on-line mechanical structure processing apparatus comprising: the cutting machine comprises a supporting system, an operating mechanism, a slewing mechanism, a driving system and a cutting mechanism, wherein the operating mechanism is connected with the supporting system, the slewing mechanism is rotatably connected with the supporting system, the driving system is arranged on the slewing mechanism and is connected with the cutting mechanism, and the cutting mechanism is rotatably connected with the slewing mechanism.

Further, the support system comprises: the upper cover is installed above the supporting plate, and the supporting plate is connected with the fixed base through the connecting plate.

Further, the operating mechanism includes: handle, support, a plurality of group gear drive module, support 49 is installed on the supporting system, the handle is installed on the support, the handle with gear drive module connects, a plurality of group gear drive module is transmission connection in proper order.

Further, the gear transmission module includes: gear shaft B, gear C, gear D, gear E, gear F, gear shaft C, gear G, gear shaft D, gear H, gear I, gear shaft D, the installation on the gear shaft D gear H, the installation on the gear shaft C gear F and gear G, the installation on the gear shaft D gear I and gear E, the installation on the gear shaft B gear C and gear D, gear H with gear F meshing connection, gear G with gear I meshing connection, gear E with gear D meshing connection.

Further, the swing mechanism includes: rotating base plate, lid, spindle cover, rotating main shaft, bearing C, bearing D, bush B, bush C, supporting sleeve B, bearing position sleeve, bearing E, bearing cover, rotating main shaft gear is installed on the rotating main shaft, bearing E with rotating main shaft connects, bearing E top installation the bearing cover, rotating main shaft sets up with supporting system junction top bearing position sleeve, rotating main shaft sets up with supporting system junction below supporting sleeve B, the last installation of rotating main shaft bearing C and bearing D, bearing D top installation bush B and bush C, rotating main shaft lower extreme connects gradually spindle cover, rotating base plate, lid.

Furthermore, the bearing positioning device further comprises a locking back cap A and a locking back cap B, wherein the locking back cap A and the locking back cap B are arranged at the joint of the bearing positioning sleeve and the supporting system.

Further, the drive system includes: the motor support is installed on the rotary mechanism, the motor is installed above the motor support, the motor is connected with the gear shaft A, the gear B, the bush A and the gear J are arranged on the gear shaft A, and the bush A is located between the bush A and the gear J.

Further, the cutting mechanism includes: the gear A is mounted at the upper end of the main shaft A, the movable sleeve is mounted on the gear A, the bearing B and the supporting sleeve A are mounted on the main shaft A, the lower end of the main shaft A is connected with the rotary cutter body, and the cutter bodies are mounted on the rotary cutter body.

Further, the method also comprises the following steps: the supporting system is provided with the locking nut A and the locking nut B, the supporting sleeve A is provided with the positioning sleeve, the supporting system is provided with the limiting frame and the feed nut, and the limiting frame is connected with the feed nut.

Furthermore, the rotary mechanism further comprises a balancing weight, and the balancing weight is arranged on the rotary mechanism.

The invention has the beneficial effects that:

the online mechanical structure processing device repairs the flatness of the pressure-bearing end face of the extrusion movable beam, and adopts an online extruder non-disassembly processing mode, namely the device is fixed on the end face of the extrusion movable beam to manually control the revolution rotating direction and the feeding amount of a cutting tool, and a motor is controlled to drive the cutting tool to rotate at a high speed, so that the deformed end face is subjected to milling processing and is parallel to the end face (reference plane) of the extrusion movable beam, and the recovery of the design reference plane is realized.

Compared with the existing repairing mode that the deformation of the pressure-bearing end face needs to adopt the center reference of the wedge gasket, the processing mode of repairing the pressure-bearing end face of the extrusion movable beam of the extruding machine has the advantages that the maintenance frequency is reduced, the reference recovery is accurate and reliable, and the recovery efficiency of the center reference of the equipment is improved.

Compared with the prior treatment mode that the deformation of the pressure-bearing end surface is required to be disassembled and off-line, and the center reference repair is carried out on the machine processing of a large horizontal boring machine or a large vertical lathe, the treatment mode of repairing the pressure-bearing end surface of the extrusion movable beam of the extruding machine of the processing device shortens the maintenance time, reduces the maintenance cost and further ensures the timeliness and the reliability of the recovery of the center reference of the equipment.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail with reference to the accompanying drawings and detailed embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise. Wherein:

FIG. 1 is a general view of the apparatus of the present invention;

FIG. 2 is a schematic structural diagram of an operating mechanism of the present invention;

FIG. 3 is a schematic view of the cutting mechanism of the present invention;

FIG. 4 is a schematic view of the bushing A of the present invention;

FIG. 5 is a schematic view of the construction of the bearing housing of the present invention;

FIG. 6 is a schematic structural view of a gear shaft A of the present invention;

FIG. 7 is a schematic structural view of a gear shaft B of the present invention;

FIG. 8 is a schematic structural view of a gear shaft C of the present invention;

FIG. 9 is a schematic structural view of a gear shaft D of the present invention;

FIG. 10 is a schematic view of a cutter body according to the present invention;

FIG. 11 is a schematic view of a motor base according to the present invention;

FIG. 12 is a schematic view of a positioning sleeve according to the present invention;

FIG. 13 is a schematic view of the coupling plate structure of the present invention;

FIG. 14 is a schematic view of the structure of the upper cover of the present invention;

FIG. 15 is a schematic view of a bottom bracket plate according to the present invention;

FIG. 16 is a schematic structural view of a locking back cap A of the present invention;

FIG. 17 is a schematic view of a spacing frame according to the present invention;

FIG. 18 is a schematic view of a rotary cutter body according to the present invention;

FIG. 19 is a schematic view of a rotating substrate structure according to the present invention;

FIG. 20 is a schematic view of a rotating spindle according to the present invention;

FIG. 21 is a schematic view of a traveling sleeve according to the present invention;

FIG. 22 is a schematic view of the construction of a support plate according to the present invention;

FIG. 23 is a schematic view of the structure of the bearing retainer of the present invention shown in FIG. 1;

FIG. 24 is a schematic view of the structure of the bearing retainer of the present invention shown in FIG. 2;

FIG. 25 is a schematic view of the spindle A of the present invention;

the reference numbers in the figures are as follows: 1-upper cover, 2-bearing plate, 3-connecting plate, 4-cutter body, 5-rotary cutter body, 6-main shaft A, 7-bearing A, 8-bearing B, 9-locking nut A, 10-locking nut B, 11-bearing sleeve A, 12-positioning sleeve, 13-rotary base plate, 14-spacing frame, 15-feed nut, 16-moving sleeve, 17-gear A, 18-motor, 19-gear B, 20-fixed base, 21-bush A, 23-gear shaft A, 24-motor support, 25-cover, 26-main shaft cover, 27-rotary main shaft, 28-bearing C, 29-bearing D, 30-bush B, 31-bush C, 32-bearing sleeve B, 33-locking back cap A, 34-locking back cap B, 35-bearing positioning sleeve, 36-bearing E, 37-bearing cover, 38-gear shaft B, 39-gear C, 40-gear D, 41-gear E, 42-gear F, 43-gear shaft C, 44-gear G, 45-gear shaft D, 46-gear H, 47-handle, 48-counterweight, 49-bracket, 50-gear I, 51-gear shaft D, 52-rotating spindle gear and 53-gear J.

Detailed Description

An in-line mechanical structure processing apparatus according to the present invention will be described in more detail with reference to the accompanying drawings of fig. 1 to 25.

An on-line mechanical structure processing apparatus comprising: the cutting machine comprises a supporting system, an operating mechanism, a slewing mechanism, a driving system and a cutting mechanism, wherein the operating mechanism is connected with the supporting system, the slewing mechanism is rotatably connected with the supporting system, the driving system is arranged on the slewing mechanism and is connected with the cutting mechanism, and the cutting mechanism is rotatably connected with the slewing mechanism.

Preferably, the support system comprises: the device comprises an upper cover 1, a support plate 2, a connecting plate 3 and a fixed base 20, wherein the upper cover 1 is installed above the support plate 2, and the support plate 2 is connected with the fixed base 20 through the connecting plate 3.

Preferably, the operating mechanism comprises: handle 47, support 49, a plurality of group gear drive module, support 49 installs on the bearing system, handle 47 installs on support 49, handle 47 with gear drive module connects, a plurality of groups gear drive module is transmission connection in proper order.

Preferably, the gear transmission module comprises: the gear comprises a gear shaft B38, a gear C39, a gear D40, a gear E41, a gear F42, a gear shaft C43, a gear G44, a gear shaft D45, a gear H46, a gear I50 and a gear shaft D51, wherein the gear H46 is mounted on the gear shaft D45, the gear F42 and the gear G44 are mounted on the gear shaft C43, the gear I50 and the gear E41 are mounted on the gear shaft D51, the gear C39 and the gear D40 are mounted on the gear shaft B38, the gear H46 is in meshed connection with the gear F42, the gear G44 is in meshed connection with the gear I50, and the gear E41 is in meshed connection with the gear D40.

Preferably, the swing mechanism includes: the rotary main shaft comprises a rotary base plate 13, a cover 25, a main shaft cover 26, a rotary main shaft 27, a bearing C28, a bearing D29, a lining B30, a lining C31, a supporting sleeve B32, a bearing positioning sleeve 35, a bearing E36, a bearing cover 37 and a rotary main shaft gear 52, wherein the rotary main shaft gear 52 is installed on the rotary main shaft 27, the bearing E36 is connected with the rotary main shaft 27, the bearing cover 37 is installed above the bearing E36, the bearing positioning sleeve 35 is arranged above the joint of the rotary main shaft 27 and a supporting system, the supporting sleeve B32 is arranged below the joint of the rotary main shaft 27 and the supporting system, the bearing C28 and the bearing D29 are installed on the rotary main shaft 27, the lining B30 and the lining C31 are installed above the bearing D29, and the lower end of the rotary main shaft 27 is sequentially connected with the main shaft cover 26, the rotary base plate 13 and the cover 25; the locking device further comprises a locking back cap A33 and a locking back cap B34, wherein the locking back cap A33 and the locking back cap B34 are arranged at the joint of the bearing positioning sleeve 35 and the supporting system.

Preferably, the drive system comprises: the motor 18, the gear B19, the bush A21, the gear shaft A23, the motor support 24, the gear J53, the motor support 24 is installed on the rotation mechanism, the motor 18 is installed above the motor support 24, the motor 18 is connected with the gear shaft A23, the gear shaft A23 is provided with the gear B19, the bush A21 and the gear J53, and the bush A21 is located between the bush A21 and the gear J53.

Preferably, the cutting mechanism comprises: the cutter body 4, the rotary cutter body 5, a main shaft A6, a movable sleeve 16, a gear A17, a bearing A7, a bearing B8 and a supporting sleeve A11, wherein the gear A17 is mounted at the upper end of the main shaft A6, the movable sleeve 16 is mounted on the gear A17, the bearing A7, the bearing B8 and the supporting sleeve A11 are mounted on the main shaft A6, the lower end of the main shaft A6 is connected with the rotary cutter body 5, and a plurality of cutter bodies 4 are mounted on the rotary cutter body 5; further comprising: lock nut A9, lock nut B10, position sleeve 12, spacing frame 14, feed nut 15, the braced system with the junction installation of main shaft A6 lock nut A9 and lock nut B10, install on the braced sleeve A11 position sleeve 12, the last installation of braced system spacing frame 14 and feed nut 15, spacing frame 14 and feed nut 15 are connected.

Preferably, the rotary mechanism further comprises a counterweight block 48, and the counterweight block 48 is arranged on the rotary mechanism.

Single manual operation handle 47, handle 47 rotate and drive gear shaft D45 rotatory, drive gear H46 then and rotate to drive next grade gear drive module and rotate, on the same principle, 4 gear drive modules drive step by step, finally are connected through gear C and the meshing of rotatory main shaft gear 52, thereby drive rotatory main shaft 27 and rotate, and rotatory main shaft 27 drives rotatory base plate 13 and rotates. The power supply is switched on and the motor 18 is started, the motor 18 rotates to drive the gear shaft A23 to rotate, and the gear J53 is meshed with the gear A17, so that the main shaft A6 is driven, the rotary cutter body 5 rotates along with the main shaft, and the cutter body 4 is driven to rotate. And manually rotating the cutter body 4 fixing device at a constant speed, rotating for a circle along the ring surface, stopping after processing for a circle, checking the actual processing amount, and formulating the next processing rate. And loosening the locking screw of the cutter body 4, and adjusting the feeding amount again, thus obtaining the finished product through circular processing. And after the 360-degree processing period of the rotating ring surface for many times, milling is completed, and the plane repairing work of the deformation of the pressure-bearing end surface is realized.

The technical scheme of the invention is as follows: aiming at the structural characteristics of a movable beam of an extruder, a set of electric milling device suitable for manual operation is designed, and a mode of combining artificial mechanical revolution and electric autorotation is adopted to mill and flatten a deformed area. The device mainly comprises: the device comprises a cutting mechanism, a rotary mechanism, a driving system, an operating mechanism and a fixed base.

Repairing and processing operation: dismantling a pressing tool (including a pressure bearing pad) → fixing a machining device → installing an adjusting tool → adjusting a feeding position → starting a driving system → rotating a double-cutter tool → manually controlling a rotating machining area and controlling a feeding amount → repeatedly circulating until machining to a flat (vertical) size → fitting a suitable high-strength transition pad → installing a tool → detecting accuracy → resuming production.

In the main process adopted by the invention,

preparation work before processing:

1. removing the extrusion tool installed on the extrusion movable beam: the extrusion stem fixing flange, the extrusion stem, the perforation needle and a supporting system and an extrusion pressure bearing pad which are connected with the perforation needle.

2. Cleaning sundries and threaded holes on the end face of the original fixed flange of the extrusion movable beam (called the extrusion movable beam end face for short), checking the flatness of the end face (correcting if necessary), checking the deformation degree of the bearing surface of the movable beam and the parallelism of the end face of the fixed flange, and recording related data.

The processing process comprises the following steps:

1. the body frame of the device is fixed on the end surface of the original fixed flange of the extrusion movable beam by adopting a stud bolt and is adjusted to be parallel to the end surface of the extrusion beam.

2. The tool rest is installed well, the tool rest is adjusted to a proper machining area according to the size of a machining plane, the special tool for the milling cutter is adjusted to the outermost machining surface, the tool retreats in the manual clockwise direction, the tool advances in the anticlockwise direction, the tool feed amount is not too large so as to avoid striking a tool, and the screw is locked after the special tool for the milling cutter is installed so as to prevent falling off.

3. The adjustment of the milling allowance (depth) is controlled to be about 0.2 mm. The power is switched on and started, the cutter rest rotates for cutting, the milling cutter fixing device is manually rotated at a constant speed, and the milling cutter fixing device rotates for a circle (360 degrees) for about 30 minutes along the ring surface, so that the processing uniformity and precision can be ensured.

4. After the machining is carried out for 360 degrees in a week, the machine is stopped, the actual machining amount is checked, and the next machining rate is set. And loosening the locking screw of the milling cutter, and adjusting the feeding amount again, so as to carry out circular machining until the requirements of the workpiece are met.

Stopping the machine after processing:

and after the machining is finished, rechecking to confirm the machining amount of the pressure-bearing end face and making a file record. And (5) powering off, removing the power line, and removing the device from the extrusion movable beam. And storing the data in a designated special area for related maintenance and custody work.

And (3) recovering the reference function of the extrusion movable beam:

and selecting and installing a proper high-strength transition pressure-bearing gasket according to the machining amount so as to compensate the machining cutting amount and restore the original design size and precision. And (4) installing qualified extrusion rods, perforating pins and related parts, and recovering the structural integrity of the movable beam.

The static and dynamic relative position precision of the extruder is comprehensively detected, necessary adjustment is carried out, and normal extrusion production work is recovered.

Example 2

And (3) repairing the deformation of the pressure-bearing end face of the extrusion movable beam on a 40MN horizontal double-acting copper and copper alloy extruder.

A40 MN horizontal double-acting copper and copper alloy extruding machine is a large extruding machine with the strongest comprehensive function, has been put into production for 18 years, and is not subjected to disassembly and overhaul. The extrusion rod bears the downward gravity and the horizontal acting force provided by the hydraulic system in the production work, the reacting force which is about 6 degrees from the horizontal direction and is generated by the action of the two forces is transmitted to the pressure-bearing end face of the extrusion movable beam, and the long-term repeated action causes the plastic deformation of the pressure-bearing end face with the difference of the upper and lower inclination of about 8 mm. The directions of the extrusion working force and the perforation force are deviated in a non-directional way, the structural quality of a pipe product is influenced, the wall thickness is seriously deviated, and the scrapping and equipment potential safety hazards are caused.

The extrusion movable beam pressure-bearing end face plastic deformation is generated, the semi-circular ring pads with different thicknesses of 1-2 mm are adopted at the initial stage for end face deformation compensation, the manufactured wedge-shaped ring pads are adopted along with the increase of the plastic deformation degree to compensate and adjust the semi-circular pads with different thicknesses, and meanwhile, some non-directional plastic deformation is generated and is difficult to compensate and adjust. Before the invention is put into operation, because the pressure-bearing end face is seriously and irregularly deformed, the invention adopts the adjustment of adding cushions with different external specifications and thicknesses and external guide devices, and also can not solve the problems of the recovery of the central datum line and the production stop time of more than ten days.

The repair process of the present invention is used.

Dismantling the extrusion movable beam of a 40MN horizontal double-acting copper and copper alloy extruder: the extrusion stem fixing flange, the extrusion stem, the perforation needle and a supporting system and an extrusion pressure bearing pad which are connected with the perforation needle are used as extrusion tools.

Cleaning the end face and the threaded hole of the fixed flange on the extrusion movable beam, checking the flatness of the end face, and relatively completely without deformation; the deformation degree of the pressure bearing surface of the movable beam is checked by taking the end surface of the fixed flange on the extruded movable beam as a reference, and compared with an original structure, the deepest area of the plastic deformation is lower left of the observation direction surface and has the depth of 7.83mm, in addition, the left deformation depth of a central horizontal line is 5.42mm, the right deformation depth is 3.78mm, and the shallowest area of the upper deformation depth is 1.68 mm.

The processing process comprises the following steps:

the device body frame is fixed on the end face of the extrusion movable beam of the original fixed flange of the movable beam by adopting four M64 stud bolts, and a clearance is checked by using a feeler gauge and adjusted to be parallel to the end face of the extrusion movable beam.

And installing a tool rest, adjusting the tool rest to a proper machining area with the diameter of 300mm according to the size of the machining plane, adjusting the milling cutter to the outermost machining surface by using a special tool, and locking a milling cutter screw. Then, the milling amount was adjusted to be about 0.2 mm.

Single hand-operated exerciseDo this. The power is switched on and started, the cutter frame rotates, the milling cutter fixing device is manually rotated at a constant speed, and the milling cutter fixing device rotates for a circle (360 degrees) along the ring surface for about 30 minutes. After one week of processing, stopping the machine, checking the actual processing amount, and formulating the next processing rate. And loosening the locking screw of the milling cutter, and adjusting the feeding amount again, so as to obtain the finished product through circular processing. After 40 times of 360-degree machining period of the rotating ring surface, the milling machining lasts for about 20 hours, and the plane repairing work of 7.83mm of deformation of the pressure-bearing end surface is realized. The detection shows that the surface roughness Ra of the repaired bearing surface is 3.2, and the flatness is highIt was 0.03 and 0.05 in parallelism/to the end face of the extrusion beam.

Stopping the machine after processing:

and after the machining is finished, rechecking to confirm that the machining amount of the pressure-bearing end face is 8.05mm, and making a file record. And (5) powering off, removing the power line, and removing the device from the extrusion movable beam. And storing the data in a designated special area for related maintenance and custody work.

And (3) recovering the reference function of the extrusion movable beam:

the thickness of the high-strength transition pressure-bearing gasket is selected and installed to be 8.00 +/-0.03 according to the machining amount, so that the machining cutting amount is compensated, and the original design size and precision are recovered. And (4) installing qualified extrusion rods, perforating pins and related parts, and recovering the structural integrity of the extrusion movable beam.

The static and dynamic relative position accuracy of the extruder is comprehensively detected, the extrusion movable beam, the extrusion container shell and the perforation movable beam are adjusted to carry out relevant adjustment, the levelness of the extrusion rod is 0, the coaxiality (& lt 0.1 & gt) of the central line of the whole extruder is tried to produce 60 TUI phi 110X 8 pipe products, the maximum wall thickness deviation is less than or equal to 4.6%, the product quality requirement is met, and the 40MN horizontal double-acting copper and copper alloy extruder resumes normal extrusion production.

The special machining device disclosed by the invention adopts a working combination principle of combining revolution and rotation, can realize the multi-angular deformation repair of a special mechanical structure plane without disassembling equipment, and is high in repair speed and low in cost.

It should be noted that the above-mentioned contents are further detailed descriptions of the present invention in conjunction with specific preferred embodiments, and it should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art to which the invention pertains, several equivalent substitutions or obvious modifications can be made without departing from the spirit of the invention, and all the properties or uses are considered to be within the scope of the invention.