Search

CN-122007523-A - Linear cutting machine for machining shell of heat exchanger

CN122007523ACN 122007523 ACN122007523 ACN 122007523ACN-122007523-A

Abstract

The invention relates to the field of heat exchanger shell linear cutting equipment, in particular to a heat exchanger shell processing linear cutting machine tool which comprises a machine tool vertical plate for bearing and supporting, base plates fixedly arranged at the front part and the rear part of the machine tool vertical plate through reinforcing ribs, a wire cutting liquid collecting box detachably fixedly arranged at the upper parts of two groups of base plates and a wire arrangement groove arranged in the machine tool vertical plate and used for wiring. The invention relates to an angle-adjustable linear cutting mechanism, when a heat exchanger shell is subjected to linear cutting, a first servo motor can synchronously drive a guide gear to carry out meshing rotation through a direction-adjusting gear, and further, the supporting angle of the guide gear is rapidly and accurately regulated and controlled, so that the wire-moving angle of a wire electrode is synchronously regulated and controlled, a contact type angle sensor can carry out real-time monitoring on the angle regulation and control, the precision of the equipment on the wire-moving angle regulation and control of the wire electrode is effectively improved, and meanwhile, the adaptability of the equipment on the heat exchanger shell for different-angle linear cutting is improved, so that the practical performance of the linear cutting equipment is improved.

Inventors

  • ZHANG YUAN
  • Cui anxin
  • HUANG SHUNYONG

Assignees

  • 龙杰机械装备(太仓)有限公司

Dates

Publication Date
20260512
Application Date
20260408

Claims (10)

  1. 1. The utility model provides a heat exchanger casing processing wire cut electrical discharge machining bed, is including being used for bearing and lathe riser (1) that support, through fixed backing plate (10) that set up in lathe riser (1) front portion and rear portion of strengthening rib (9), detachable fixed wire cut electrical discharge machining liquid collection box (8) that set up on two groups of backing plates (10) upper portion and offer wire arranging groove (4) that are used for walking the line in lathe riser (1) inside, its characterized in that: the direction adjusting component (2), the direction adjusting component (2) is fixedly arranged on one side of the upper part of the inner end surface of the machine tool vertical plate (1), the other side of the front end surface of the machine tool vertical plate (1) is provided with a control screen module (5), and the direction adjusting component (2) is used for driving the processing component (3) to rotate; The machining assembly (3) is rotationally clamped on the inner end face of the machine tool vertical plate (1), a heat exchanger shell (7) is arranged in the machining assembly (3), and the machining assembly (3) is used for performing multi-angle linear cutting on the heat exchanger shell (7); The first servo motor (21) is meshed with the guide gear (34) through the direction-adjusting gear (23) so as to drive the contact angle sensor (24) and the turntable seat (35) to rotate in the machine tool vertical plate (1), so that the wire cutting angle of the wire electrode is adjusted, and the contact angle sensor (24) is used for performing closed-loop detection on the angle of the wire electrode.
  2. 2. The heat exchanger shell machining linear cutting machine tool of claim 1, wherein the direction adjusting assembly (2) comprises a motor base (22) and a first servo motor (21) fixedly arranged at an opposite interface of the motor base (22), a driving shaft (26) is fixedly clamped at a power output end of the first servo motor (21) through a coupler, a direction adjusting gear (23) is fixedly clamped at the axial center of the driving shaft (26), and an output end of the driving shaft (26) is in butt joint with a contact type angle sensor (24) through a support (25).
  3. 3. A heat exchanger shell machining line cutting machine tool according to claim 2, wherein the machining assembly (3) comprises a turntable seat (35), a guide gear (34) fixedly arranged at the center of the side end face of the turntable seat (35), a shield plate (6) fixedly arranged at the front part and the rear part of the turntable seat (35), two groups of synchronous pulleys (39) rotationally clamped at the rear part of the inner end face of the turntable seat (35), idler pulleys (36) are rotationally clamped at the positions, close to the edges, of the rear part of the turntable seat (35) and on two sides of the two groups of synchronous pulleys (39) through bearing seats, a stepping motor I (38) is fixedly clamped at the power input end of one group of the idler pulleys (39), a plurality of groups of idler pulleys (36) are in meshed connection with the two groups of synchronous pulleys (39) through a synchronous belt (37), wire electrode winding and unwinding shafts (31) for winding and unwinding wire electrodes are fixedly clamped at the front parts of the two groups of the synchronous pulleys (39), tensioning and adjusting assemblies (33) are arranged on the upper part and the lower part of the front end face of the turntable seat (35), and lead wires (32) are arranged on the two sides of the turntable seat (35).
  4. 4. A heat exchanger shell machining line cutting machine tool according to claim 3, wherein the first stepping motor (38) synchronously drives the two groups of wire electrode winding and unwinding shafts (31) to rotate through a synchronous belt (37) and a synchronous belt wheel (39), and the synchronous winding and unwinding of the two groups of wire electrode winding and unwinding shafts (31) can enable the wire electrode to form unidirectional displacement.
  5. 5. The heat exchanger shell machining wire cutting machine tool of claim 3, wherein the wire assembly (32) comprises a supporting base (327), a cooling assembly (322) fixedly arranged at the front center of the supporting base (327), a supporting clamping seat (323) fixedly arranged on the upper portion of the supporting base (327) and a stepping motor II (321) fixedly arranged on the upper portion of the supporting clamping seat (323), the power output end of the stepping motor II (321) synchronously drives two groups of wire pressing guide wheels (325) to synchronously and reversely rotate through the meshing of two groups of wire guide wheels (324), a power supply module (328) is arranged at the rear portion of the upper end face of the supporting clamping seat (323), and two groups of wire pressing wheels (326) for wires are rotatably clamped at the bottom of the power supply module (328).
  6. 6. The heat exchanger shell machining wire cutting machine tool of claim 5, wherein the cooling assembly (322) comprises a cooling guide seat (3224), a wire groove (3225) formed in the middle of the inner end surface of the cooling guide seat (3224), a liquid storage tank (3222) matched with a fixing bolt (3223) through threads and fixedly clamped at the front part of the cooling guide seat (3224), a liquid inlet pipe (3221) is integrally formed at the upper part of the liquid storage tank (3222), and eight groups of high-pressure spray nozzles (3226) are fixedly arranged on the front end surface of the liquid storage tank (3222) at equal intervals.
  7. 7. The heat exchanger shell machining wire cutting machine of claim 6, wherein the first wire guide wheels (326) are connected with the electrode wires in a fitting mode, the second stepping motor (321) drives the second wire guide wheels (325) to press the electrode wires through the two mutually meshed wire guide wheels (324), and the electrode wires penetrate through the wire guide grooves (3225) to the outside of the cooling guide seat (3224).
  8. 8. The heat exchanger shell machining linear cutting machine according to claim 6, wherein the tensioning adjusting assembly (33) comprises a limiting clamping seat (331), two groups of wire guide wheels II (335) rotatably clamped on two sides of the inner end surface of the limiting clamping seat (331), and a stepping motor III (334) fixedly arranged in the middle of the inner end surface of the limiting clamping seat (331) through an L-shaped clamping seat (332), and a power output end of the stepping motor III (334) is in threaded connection with a pressure sensing assembly (333) through a rectangular screw rod (336); The pressure sensing assembly (333) comprises a positioning seat (3333), two groups of wire guide wheels (3336) rotationally clamped inside the positioning seat (3333) and two groups of linear clamping seats (3331) fixedly arranged on the upper portion of the positioning seat (3333), pressure sensors (3334) are fixedly clamped in the middle of the inner end face of each group of linear clamping seats (3331), screw guide seats (3332) are elastically and slidably clamped between the two groups of positioning seats (3333) through spring sliding seats (3335), and the front group of pressure sensors and the rear group of pressure sensors (3334) are elastically and jacked and connected with the spring sliding seats (3335).
  9. 9. The heat exchanger shell machining wire cutting machine of claim 8, wherein the stepper motor III (334) is matched with the screw guide seat (3332) through a rectangular screw (336) to drive the positioning seat (3333) to perform linear displacement inside the limiting clamping seat (331), and the two groups of wire wheels III (3336) perform elastic tensioning position compensation on the electrode wires through the spring sliding seat (3335).
  10. 10. The heat exchanger shell machining wire cutting machine of claim 8, wherein the wire electrode sequentially passes through a second wire guide wheel (335), a third wire guide wheel (3336), a first wire guide wheel (326) and a wire pressing guide wheel (325) through an idler wheel (36), is guided out through wire grooves (3225), the wire grooves (3225) on two sides are coaxially arranged, and the liquid storage tanks (3222) on two sides perform wire cutting liquid coaxial opposite flushing through a high-pressure spray head (3226).

Description

Linear cutting machine for machining shell of heat exchanger Technical Field The invention relates to the technical field of heat exchanger shell linear cutting equipment, in particular to a heat exchanger shell machining linear cutting machine tool. Background The wire cutting machine tool for heat exchanger shell is a special wire cutting machine tool for heat exchanger shell conductive metal workpiece, and mainly uses wire electrode such as molybdenum wire and brass wire as tool electrode by means of wire cutting non-contact pulse discharge erosion principle, under the action of high-frequency pulse power supply, the small discharge gap is formed between wire electrode and workpiece, and insulating working fluid is injected, so that the workpiece material can be instantaneously melted and gasified at 8000-12000 deg.C by means of pulse discharge, and further the key procedures of port cutting, flange hole site machining, special-shaped notch cutting, subsection cutting and tube plate connecting surface machining are implemented for cylindrical conductive material workpiece such as heat exchanger shell. But the most of the existing heat exchanger shell processing linear cutting machine is of a fixed design, so that a workpiece needs to be cut according to the clamping direction of a clamping tool and then matched with an electrode wire, when the workpiece needs to be cut in different directions, if the axial cutting angle of the workpiece needs to be regulated and controlled, the workpiece needs to be split and clamped again, the workpiece needs to be regulated and controlled according to the cutting angle again, the processing efficiency of the linear cutting machine on the heat exchanger shell is greatly reduced, meanwhile, the accuracy and stability of the existing linear cutting machine in real-time regulation and control on the tensioning force of the electrode wire are insufficient, the self-adaptive floating tensioning position compensation of the electrode wire is inconvenient to be carried out rapidly, and the use protection performance of the cutting machine on the electrode wire is further reduced, so that the heat exchanger shell processing linear cutting machine is needed to solve the problems set forth in the above. Disclosure of Invention The invention aims to provide a heat exchanger shell machining linear cutting machine tool for solving the problems in the background technology. In order to achieve the aim, the invention provides the technical scheme that the heat exchanger shell processing linear cutting machine tool comprises a machine tool vertical plate for bearing and supporting, base plates fixedly arranged at the front part and the rear part of the machine tool vertical plate through reinforcing ribs, a detachable linear cutting liquid collecting box fixedly arranged at the upper parts of the two groups of base plates and a wire-arranging groove arranged in the machine tool vertical plate for wire arrangement, The direction adjusting component is fixedly arranged on one side of the upper part of the inner end surface of the machine tool vertical plate, a control screen module is arranged on the other side of the front end surface of the machine tool vertical plate, and the direction adjusting component is used for driving the processing component to rotate and detecting the linear cutting angle of the processing component; The machining assembly is rotationally clamped on the inner end face of the machine tool vertical plate, a heat exchanger shell is arranged in the machining assembly, and the machining assembly is used for conducting multi-angle linear cutting on the heat exchanger shell. Specifically, the steering assembly comprises a motor base and a first servo motor fixedly arranged at a motor base opposite port, a driving shaft is fixedly clamped at the power output end of the first servo motor through a coupling, a steering gear is fixedly clamped at the axial center of the driving shaft, and the output end of the driving shaft is in butt joint with a contact type angle sensor through a support. Specifically, processing subassembly includes carousel seat, fixed guide gear that sets up in carousel seat side terminal surface center department, fixed shield plate that sets up in carousel seat front portion and rear portion and rotate two sets of synchronous pulleys of joint at carousel seat inner terminal surface rear portion, the rear portion that is located the carousel seat is close to the edge and the both sides of two sets of synchronous pulleys all rotate the joint through the bearing frame and have the idler, and be located one of them set of synchronous pulley's power input end fixed joint and have step motor one, carry out the meshing through the hold-in range between multiunit idler and the two sets of synchronous pulleys and be connected, and the equal fixed joint in front portion of two sets of synchronous pulleys has the wire electrode receive and release axle tha