Search

CN-121989080-A - Tool rest assembly capable of automatically retracting tool

CN121989080ACN 121989080 ACN121989080 ACN 121989080ACN-121989080-A

Abstract

The invention relates to the field of manufacturing of steel pipes and bent pipes, mainly relates to an automatic tool retracting type tool rest assembly realized by utilizing a swinging principle during port machining, and aims to solve the technical problem that tool retracting lines cannot be completely eliminated by the existing method. The automatic tool withdrawal type tool rest assembly comprises a fixed seat, a tool and a profiling wheel, the tool and the profiling wheel are arranged on the fixed seat, the automatic tool withdrawal type tool rest assembly further comprises a wheel seat and a shaft handle, the shaft handle is used for being in lap joint with one side of the wheel seat, which is far away from the tool, and one end of the shaft handle, which is far away from the wheel seat and the fixed seat, is connected with the profiling wheel, and the locking assembly is arranged on the wheel seat and the shaft handle, and is used for pressing the shaft handle on the wheel seat or loosening the shaft handle along the extending direction of the axis of the lap joint surface of the wheel seat and the shaft handle, so that the shaft handle can swing along with the profiling wheel under the loosening working condition. The cutter rest assembly capable of automatically retracting the cutter can lead the cutter to leave the surface of the workpiece by increasing the distance between the profiling wheel and the cutter when the feeding of the cutter is finished, thereby realizing the automatic retracting and thoroughly avoiding the generation of cutter retracting lines.

Inventors

  • CHEN YUEHUA
  • CHEN GUODONG
  • ZHANG HAIBO
  • GONG ZHONGLU
  • LIU SHENGLI
  • MEN HONGYU
  • CHEN HONGCHANG
  • GAO QIUSHENG
  • LI ZHENGKUN

Assignees

  • 中国石油集团渤海石油装备制造有限公司
  • 中国石油天然气集团有限公司
  • 巨龙钢管有限公司

Dates

Publication Date
20260508
Application Date
20241107

Claims (10)

  1. 1. The tool rest assembly capable of automatically retracting the tool comprises a fixed seat (1), a tool (2) and a profiling wheel (3), wherein the tool (2) and the profiling wheel (3) are arranged on the fixed seat (1), and the tool rest assembly is characterized by further comprising a wheel seat (4) arranged on the fixed seat (1), a shaft handle (5) which is in lap joint with one side, far away from the tool (2), of the wheel seat (4) and is connected with the profiling wheel (3), and a locking assembly (6) which is arranged on the wheel seat (4) and the shaft handle (5) and is used for pressing the shaft handle (5) on the wheel seat (4) or loosening the shaft handle (5) along the extending direction of the axis of the lap joint surface of the two, so that the shaft handle (5) can swing along with the profiling wheel (3) under a loosening working condition.
  2. 2. The automatic retracting tool rest assembly according to claim 1, wherein the locking component (6) comprises a locking lever (61); The locking rod (61) is arranged on the wheel seat (4) and the shaft handle (5) in a penetrating mode, and two ends of the locking rod are respectively connected with a locking cap (62) and an adjusting cap (63) in a threaded mode.
  3. 3. The automatic retracting tool rest assembly according to claim 2, wherein the locking assembly (6) further comprises an adjustment member (64); the adjusting piece (64) can drive the shaft handle (5) to move under a starting working condition, so that the lap surface of the shaft handle (5) is attached to the lap surface of the wheel seat (4).
  4. 4. The automatic retracting tool rest assembly according to claim 3, wherein said adjustment member (64) comprises a linear actuator; The linear driver is integrally sleeved on the locking rod (61) and is positioned between the shaft handle (5) and the adjusting cap (63).
  5. 5. The automatic retracting tool rest assembly according to claim 4, wherein the locking lever (61) is further sleeved with a spherical washer (65), the spherical washer (65) being located between the adjustment cap (63) and the linear actuator.
  6. 6. The automatic retracting tool holder assembly according to claim 2, wherein the wheel seat (4) is concavely formed with a first groove from a joint surface thereof, and the arbor (5) is concavely formed with a second groove from a joint surface thereof; The locking assembly (6) further comprises a locating pin (66), and the locating pin (66) is inserted into the first groove and the second groove.
  7. 7. The automatic retracting tool rest assembly according to claim 1, wherein the wheel seat (4) comprises a bottom plate (41) and a first overlap shaft (42), one end of the first overlap shaft (42) being fixed to the bottom plate (41); The shaft handle (5) comprises a fixed plate (51) and a second lap joint shaft (52), one end of the second lap joint shaft (52) is fixed on the fixed plate (51), and the side surface of the second lap joint shaft is matched with the side surface of the first lap joint shaft (42).
  8. 8. The automatic tool-retracting tool rest assembly according to any one of claims 1 to 7, further comprising a floating mount (7); the cutter (2) is arranged on the floating seat (7); The wheel seat (4) is fixed on the floating seat (7); The floating seat (7) is in sliding fit with the fixed seat (1) so as to slide on the fixed seat (1) along a straight line, and the floating seat (7) has a tendency to slide towards a direction approaching the cutter (2) under a feeding working condition.
  9. 9. The automatic retracting tool rest assembly according to claim 8, further comprising an adjusting bolt (8) and a spring (9); the adjusting bolt (8) is fixed on the fixed seat (1), and the extending direction of the adjusting bolt is consistent with the sliding direction of the floating seat (7); The spring (9) is sleeved on the adjusting bolt (8), one end of the spring is connected with the fixed seat (1), and the other end of the spring is connected with the floating seat (7).
  10. 10. The automatic retracting tool rest assembly according to claim 8, wherein a tool bar (10) is fixed on the floating seat (7), and the tool (2) is fixed on the tool bar (10).

Description

Tool rest assembly capable of automatically retracting tool Technical Field The invention relates to the field of manufacturing of steel pipes and bent pipes, in particular to an automatic tool retracting type tool rest assembly which is realized by utilizing a swinging principle during port machining. Background The steel pipe and the bent pipe are mainly formed into a pipe network by a welding method in site, so that the processing of a pipe end groove is an important process. In order to ensure the machining precision of the pipe end groove, a profiling tool rest is generally used, but when the profiling tool rest finishes machining and axially retreats, a cutter can generate obvious scratches on a machining surface, namely, cutter withdrawal lines can generate stress concentration, the strength of a pipeline is influenced, and meanwhile, the appearance quality of the pipeline is also influenced. At present, the method for eliminating the tool withdrawal patterns comprises the following steps: 1. The rigidity of the steel pipe clamp of the chamfering machine is enhanced. The method has relatively light tool relief but still exists. 2. The structural rigidity of the tool rest, the tool bar and the profiling wheel is increased, and the elastic deformation is reduced. The method can reduce the occurrence degree of the tool withdrawal marks, but cannot be avoided. 3. Reducing the back draft and feeding for a plurality of times. The method can obviously reduce the tool withdrawal marks, but the processing efficiency is reduced by times. None of the above methods effectively solve the problem of knife withdrawal. Disclosure of Invention The invention aims to provide an automatic tool withdrawal type tool rest assembly, which aims to solve the technical problem that the existing method cannot completely eliminate tool withdrawal patterns. In order to solve the technical problems, the technical scheme provided by the invention is as follows: The invention provides an automatic tool withdrawal type tool rest assembly which comprises a fixed seat, a tool and a profiling wheel, and also comprises a wheel seat, a shaft handle and a locking assembly, wherein the tool and the profiling wheel are arranged on the fixed seat, the wheel seat is arranged on the fixed seat, the shaft handle is used for being in lap joint with one side of the wheel seat far away from the tool, one end of the shaft handle far away from the wheel seat and the fixed seat is connected with the profiling wheel, and the locking assembly is arranged on the wheel seat and the shaft handle and is used for pressing the shaft handle on the wheel seat or loosening the shaft handle along the extending direction of the axis of the lap joint surface of the wheel seat and the shaft handle, so that the shaft handle can swing along with the profiling wheel under the loosening working condition. Further, the locking assembly comprises a locking rod; the locking rod penetrates through the wheel seat and the shaft handle, and two ends of the locking rod are respectively connected with a locking cap and an adjusting cap in a threaded mode. Further, the locking assembly further comprises an adjusting member; the adjusting piece can drive the shaft handle to move under the starting working condition, so that the lap surface of the shaft handle is attached to the lap surface of the wheel seat. Further, the adjusting member includes a linear actuator; The linear driver is integrally sleeved on the locking rod and is positioned between the shaft handle and the adjusting cap. Further, a spherical washer is sleeved on the locking rod, and the spherical washer is located between the adjusting cap and the linear driver. Further, the wheel seat is concavely provided with a first groove from the lap joint surface, and the shaft handle is concavely provided with a second groove from the lap joint surface; The locking assembly further comprises a locating pin, and the locating pin is inserted into the first groove and the second groove. Further, the wheel seat comprises a bottom plate and a first lap joint shaft, and one end of the first lap joint shaft is fixed on the bottom plate; The shaft handle comprises a fixed plate and a second lap joint shaft, one end of the second lap joint shaft is fixed on the fixed plate, and the side face of the second lap joint shaft is matched with the side face of the first lap joint shaft. Further, the automatic tool retracting type tool rest assembly further comprises a floating seat; the cutter is arranged on the floating seat; The wheel seat is fixed on the floating seat; the floating seat is in sliding fit with the fixed seat so as to slide on the fixed seat along a straight line, and the floating seat has a tendency of sliding towards the direction close to the cutter under the feeding working condition. Further, the automatic tool retracting type tool rest assembly further comprises an adjusting bolt and a spring; The adjusting bolt is