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CN-121988948-A - Range extender camshaft guiding tool

CN121988948ACN 121988948 ACN121988948 ACN 121988948ACN-121988948-A

Abstract

The invention relates to a range extender cam shaft guiding tool which comprises a base plate and a telescopic piece, wherein the base plate and the telescopic piece are arranged on a welding workbench, a plurality of guide grooves are formed in the base plate in a crisscross mode, the range extender cam shaft guiding tool further comprises a hinged plate, a sliding plate, a limiting rod, a pushing rod, a sliding block, a rotary table and a bonding plate, the telescopic end of the telescopic piece is contracted to enable the rotary table to rotate for a fixed angle and then stop, so that a clamping piece is opened, the pushing rod pushes a cam shaft to enter the clamping piece which is rotated and opened, the telescopic end of the telescopic piece extends, the clamping piece rotates for a fixed angle to clamp the cam shaft, and the telescopic end of the telescopic piece is pressed against and fixed the cam shaft. According to the invention, through the guide groove, the hinge plate and the pushing rod linkage structure, the cam shaft is automatically pushed into the guide groove under the driving of the telescopic piece, manual alignment is not needed, the positioning precision and efficiency are improved, and the guide groove and the pushing rod are provided with the guide section, the boosting cam and other structures, so that the cam shaft guide device can adapt to cam shafts with different sizes and positions, and stable introduction and stable clamping are realized.

Inventors

  • ZENG DAJIN
  • ZHANG LONGQIANG
  • YANG LIN
  • BAI YINGBIN

Assignees

  • 四川银钢一通凸轮轴有限公司

Dates

Publication Date
20260508
Application Date
20260211

Claims (8)

  1. 1. The guide tool for the camshaft of the range extender comprises a base plate (1) arranged on a welding workbench and is characterized in that a telescopic piece (2) is fixedly connected to the base plate (1), a plurality of guide grooves (3) which are criss-cross are formed in the base plate (1), a plurality of hinge plates (4) which are hinged end to end are movably arranged in the base plate (1), a sliding plate (5) is rotatably connected to the telescopic end of the telescopic piece (2), and a switching piece (6) is arranged at the end part of the sliding plate (5); The device comprises a hinge plate (4), a clamping piece (7) and a limiting rod (8) sliding in the guide groove (3), wherein the limiting rod (8) is rotationally connected with the hinge position of the hinge plate (4), the pushing rod (9) is rotationally connected to the inner end of the limiting rod (8), the sliding block (10) is rotationally connected to the hinge position of the hinge plate (4), a rotary table (11) is rotationally connected to the sliding block (10), two attaching plates (12) attached to the sliding plate (5) are fixedly connected to the rotary table (11), and the attaching plates (12) and the rotary table (11) are matched with the switching piece (6); The telescopic end of the telescopic piece (2) is contracted, so that the turntable (11) is stopped after rotating for a fixed angle, the clamping piece (7) is opened, and meanwhile, the pushing rod (9) pushes the cam shaft to enter the clamping piece (7) which is opened in a rotating way; the telescopic end of the telescopic piece (2) stretches, so that the clamping piece (7) rotates for a fixed angle to clamp the cam shaft, and the telescopic end of the telescopic piece (2) is propped against and fixed to the cam shaft.
  2. 2. The guiding tool for the cam shaft of the range extender is characterized in that a sleeve (13) which is horizontally distributed and is rotationally connected with a pushing rod (9) is fixedly connected to the inner end of the limiting rod (8), guiding tangential planes (14) which are obliquely distributed are formed in the sleeve (13), and the guiding tangential planes (14) are in abutting fit with the cam shaft.
  3. 3. The cam shaft guiding tool for the range extender is characterized in that a rolling disc (15) in rolling fit with a base plate (1) is fixedly connected to the end of a pushing rod (9), and a plurality of boosting cams (16) are fixedly connected to the pushing rod (9).
  4. 4. The cam shaft guiding tool for the range extender is characterized in that the telescopic end of the telescopic piece (2) is rotatably connected with a rotating cylinder (17) sliding in the guide groove (3), and the rotating cylinder (17) is rotatably connected with the sliding plate (5) through a hinge column of the hinge plate (4).
  5. 5. The cam shaft guiding tool for the range extender is characterized in that the clamping piece (7) comprises two semicircular clamping cylinders (18), and a connecting rod (19) in rotary connection with the edge of the turntable (11) is fixedly connected to the bottom of each clamping cylinder (18).
  6. 6. The range extender camshaft guiding tool as claimed in claim 6, wherein the two clamping cylinders (18) are internally provided with magnetic attraction structures with magnetic repulsion, and the clamping cylinders (18) are fixedly connected with guide plates (20).
  7. 7. The cam shaft guiding tool for the range extender is characterized in that the switching piece (6) comprises a toothed plate (21), grooves (22) are formed in two sides of the sliding plate (5), the toothed plate (21) is fixedly connected with the grooves (22), the rotary table (11) is an incomplete gear, and the bonding plate (12) rotates into the grooves (22).
  8. 8. The range extender cam shaft guiding tool as claimed in claim 7, wherein the toothed plate (21) and the sliding plate (5) penetrate through the sliding block (10), the diameter of the guiding groove (3) is larger than that of the cam shaft, and the base plate (1) is provided with a through hole communicated with the guiding groove (3) in a penetrating mode.

Description

Range extender camshaft guiding tool Technical Field The invention relates to the technical field of guiding and positioning for camshaft welding, in particular to a range extender camshaft guiding tool. Background In a range-extending electric automobile, wheels are not directly driven, a cam shaft is a core component of a valve mechanism of an engine (namely the engine in a range extender), and the range-extending electric automobile is composed of a series of cams, and is used for accurately controlling the opening and closing time and lift of an intake valve and an exhaust valve so as to determine the breathing (intake and exhaust) efficiency of the engine, directly influence the dynamic property, smoothness and fuel economy of the engine, and is particularly used as the cam shaft of the range extender; The manufacturing process of camshafts is largely divided into two main categories, monolithic and assembled, and assembled camshafts typically use welding equipment to weld multiple individual parts (cam, journal, mandrel) together into one piece. At present, in the welding process of range extender camshaft, need generally with the camshaft accurate location and centre gripping in order to carry out follow-up processing on the frock, and often unable direct alignment guide way when placing of camshaft, need rely on operating personnel manual adjustment, not only inefficiency, and easily lead to processing error because of the deviation of counterpointing. Therefore, a range extender cam shaft guiding tool is provided for solving the problems. Disclosure of Invention The invention aims to provide a cam shaft guiding tool for a range extender. The invention aims at realizing the technical scheme that the guiding tool for the camshaft of the range extender comprises a base plate arranged on a welding workbench, wherein a telescopic piece is fixedly connected to the base plate, a plurality of guide grooves which are criss-cross are formed in the base plate, a plurality of hinge plates which are hinged end to end are movably arranged in the base plate, the telescopic end of the telescopic piece is rotatably connected with a sliding plate, and the end part of the sliding plate is provided with a switching piece; The clamping piece and the limiting rod sliding in the guide groove are also included, the hinging part of the limiting rod and the hinged plate is rotationally connected, the pushing rod is rotationally connected at the inner end of the limiting rod, the sliding block is rotationally connected at the hinging part of the hinged plate, the rotating disk is rotationally connected on the sliding block, the two attaching plates attached to the sliding plate are fixedly connected on the rotating disk, and the attaching plates and the rotating disk are matched with the switching piece; The telescopic end of the telescopic piece is contracted, so that the turntable stops after rotating for a fixed angle, the clamping piece is opened, and the pushing rod pushes the cam shaft to enter the clamping piece which is opened in a rotating way; The telescopic end of the telescopic piece stretches to enable the clamping piece to rotate for a fixed angle to clamp the cam shaft, and the telescopic end of the telescopic piece is propped against and fixed to the cam shaft. As further description of the technical scheme, the inner end of the limiting rod is fixedly connected with a sleeve which is horizontally distributed and is rotationally connected with the pushing rod, the sleeve is provided with guide tangential planes which are obliquely distributed, and the guide tangential planes are in abutting fit with the cam shaft so as to conveniently enter the guide groove smoothly. As further description of the technical scheme, the end part of the pushing rod is fixedly connected with a rolling disc in rolling fit with the base plate, and the pushing rod is fixedly connected with a plurality of boosting cams. As further description of the technical scheme, the telescopic end of the telescopic piece is rotationally connected with the autorotation cylinder sliding in the guide groove, and the autorotation cylinder is rotationally connected with the sliding plate through the hinge post of the hinge plate, so that linkage matching is realized, and the telescopic piece is more efficient. As further description of the technical scheme, the clamping piece comprises two semicircular clamping cylinders, and the bottoms of the clamping cylinders are fixedly connected with connecting rods which are rotationally connected with the edge of the turntable and are used for rapidly clamping or releasing. As further description of the technical scheme, the inside of the two clamping cylinders is provided with a magnetic attraction structure with magnetic repulsion, and the clamping cylinders are fixedly connected with guide plates, so that the cam shaft can be conveniently clamped into the clamping cylinders. As a further description of the