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CN-120435428-B - Linear conveying system and method for manufacturing linear conveying system

CN120435428BCN 120435428 BCN120435428 BCN 120435428BCN-120435428-B

Abstract

A linear conveying system (1) is provided with a base (5) of a conveying path module, a movable element (3) which moves along the conveying path, a stator (6) which is arranged on the base (5), a1 st position detection part (7) which is arranged on any one of the base (5) and the stator (6), and a2 nd position detection part (14) which is arranged on the movable element (3) and detects the position of the movable element (3) together with the 1 st position detection part (7). The 1 st position detection unit (7) and the 2 nd position detection unit (14) are disposed with a1 st gap (11) therebetween in the 1 st direction. A1 st positioning part (10) which restricts the movement of the 1 st position detection part (7) in the direction in which the 1 st gap (11) is narrowed and allows the movement of the 1 st position detection part (7) in the direction in which the 1 st gap (11) is widened is provided on the base (5). The movable element (3) is provided with a1 st adjustment mechanism capable of adjusting the position of the 2 nd position detection part (14) in the 1 st direction.

Inventors

  • OKUMA MASASHI
  • KATSUDA YUSUKE
  • TATEI YOSHINAO
  • Eye piece sensitive man
  • Futanoya Hitoshi
  • Shiraku Takashi

Assignees

  • 三菱电机株式会社

Dates

Publication Date
20260512
Application Date
20230413

Claims (6)

  1. 1. A linear conveyor system, comprising: a base of the conveying path module, which forms a conveying path; a movable member that moves along the conveying path; A stator provided on the base and forming a linear motor together with the movable element; A1 st position detecting part provided on either the base or the stator, and A2 nd position detecting unit provided to the movable element and configured to detect a position of the movable element together with the 1 st position detecting unit, The 1 st position detecting section and the 2 nd position detecting section are disposed with a1 st gap therebetween in the 1 st direction, A1 st positioning portion which restricts movement of the 1 st position detecting portion in a direction in which the 1 st gap is narrowed and allows movement of the 1 st position detecting portion in a direction in which the 1 st gap is widened is provided on the base, The movable element is provided with a 1 st adjustment mechanism capable of adjusting the position of the 2 nd position detection unit in the 1 st direction.
  2. 2. The linear conveyor system of claim 1, wherein the linear conveyor system comprises a plurality of rollers, The stator is provided with a coil of wire, The movable element has a permanent magnet disposed with a2 nd gap from the coil in the 2 nd direction, The 2 nd direction is a direction perpendicular to the 1 st direction.
  3. 3. The linear conveyor system of claim 1, wherein the linear conveyor system comprises a plurality of rollers, The movable element is provided with a conveyance direction positioning portion that restricts movement of the 2 nd position detecting portion in a conveyance direction of the movable element.
  4. 4. A linear conveyor system as claimed in any one of claims 1 to 3, characterized in that, The movable element is provided with a2 nd positioning portion which restricts movement of the 2 nd position detecting portion in a direction in which the 1 st gap is narrowed, and which permits movement of the 2 nd position detecting portion in a direction in which the 1 st gap is widened.
  5. 5. A method for manufacturing a linear conveyance system having a base of a conveyance path module that forms a conveyance path, a movable member that moves along the conveyance path, a stator that is provided to the base and forms a linear motor together with the movable member, a1 st position detection unit that is provided to either the base or the stator, and a 2 nd position detection unit that is provided to the movable member and that detects a position of the movable member together with the 1 st position detection unit, wherein the 1 st position detection unit and the 2 nd position detection unit are arranged with a1 st gap therebetween in a1 st direction, wherein a1 st positioning unit that restricts movement of the 1 st position detection unit in a direction in which the 1 st gap is narrowed and allows movement of the 1 st position detection unit in a direction in which the 1 st gap is widened is provided to the movable member, wherein a1 st adjustment mechanism that can adjust a position of the 2 nd position detection unit in the 1 st direction is provided to the movable member, The method for manufacturing a linear transport system is characterized by comprising: A1 st positioning step of positioning the 1 st position detecting section in the 1 st direction by bringing the stator or the 1 st position detecting section into contact with the 1 st positioning section and restricting movement of the 1 st position detecting section in a direction in which the 1 st gap is narrowed; A2 nd positioning step of positioning the 2 nd position detecting unit in the 1 st direction by sandwiching a gap adjusting member between the 1 st position detecting unit and the 2 nd position detecting unit; a1 st fixing step of fixing the 2 nd position detecting portion to the movable element with the gap adjusting member interposed between the 1 st position detecting portion and the 2 nd position detecting portion; A moving step of moving the 1 st position detecting section in a direction in which the 1 st gap is widened, and And a removing step of removing the gap adjustment member from the 1 st gap.
  6. 6. A method for manufacturing a linear conveyance system having a base of a conveyance path module that forms a conveyance path, a movable member that moves along the conveyance path, a stator that is provided to the base and forms a linear motor together with the movable member, a1 st position detection unit that is provided to either the base or the stator, and a 2 nd position detection unit that is provided to the movable member and that detects a position of the movable member together with the 1 st position detection unit, wherein the 1 st position detection unit and the 2 nd position detection unit are arranged with a1 st gap therebetween in a1 st direction, wherein a1 st positioning unit that restricts movement of the 1 st position detection unit in a direction in which the 1 st gap is narrowed and allows movement of the 1 st position detection unit in a direction in which the 1 st gap is widened is provided to the movable member, wherein a1 st adjustment mechanism that can adjust a position of the 2 nd position detection unit in the 1 st direction is provided to the movable member, The method for manufacturing the linear conveying system is characterized by comprising the following steps: A1 st positioning step of bringing a jig corresponding to the shape of the stator, the 1 st position detecting unit, and the 1 st gap into contact with the 1 st positioning unit, and restricting movement of the jig in a direction in which the 1 st gap is narrowed, thereby positioning the jig in the 1 st direction; A1 st fixing step of fixing the 2 nd position detecting section to the movable element in a state where the 2 nd position detecting section is brought into contact with the jig; a moving step of moving the jig in a direction in which the 1 st gap is widened, and And a removal step of removing the jig from between the base and the movable member.

Description

Linear conveying system and method for manufacturing linear conveying system Technical Field The present invention relates to a linear conveyance system using a linear motor and a method for manufacturing the linear conveyance system. Background A linear motor having a movable element and a stator is used as a driving mechanism of a linear conveying system for conveying an article such as a component. The linear transport system is a system that moves a movable element along a track defined by a guide rail or the like. In the case where the linear transport system has a guide rail, the guide rail and the stator are held by the base. In the linear transport system, a magnetic field is generated by energizing the coils of the stator, and a propulsive force for moving the movable element is generated by the magnetic field, so that the movable element can be moved along the rail. In general, a linear transport system includes a1 st position detecting unit and a2 nd position detecting unit for detecting a position of a movable element. The 1 st position detecting portion is provided to the stator or the base, and the 2 nd position detecting portion is provided to the movable member. The 1 st position detecting unit and the 2 nd position detecting unit are disposed with a gap therebetween. In the linear transport system, the 1 st position detecting unit and the 2 nd position detecting unit detect the position of the movable element, and the movable element is positioned with high accuracy, so that the processing and assembly of the components on the rail can be performed. In order to detect the position of the movable element with high accuracy, it is necessary to appropriately adjust the gap between the 1 st position detecting portion and the 2 nd position detecting portion. In the case where the linear transport system includes a plurality of movable elements and a plurality of stators, it is necessary to adjust the gap between the 1 st position detecting portion and the 2 nd position detecting portion in each of the movable elements and each of the stators. Since the above-described gap adjustment operation requires a large amount of work and time, simplification of the gap adjustment operation is required. Patent document 1 describes a technique in which a low-friction film sheet is sandwiched between a1 st position detecting section and a2 nd position detecting section to adjust a gap, and then the film sheet is pulled out from the gap. Specifically, patent document 1 discloses a technique of inserting a film sheet between a1 st position detecting portion and a2 nd position detecting portion, pressing the 1 st position detecting portion by the 2 nd position detecting portion to adjust a gap, and then fixing the relative positions of the 1 st position detecting portion and the 2 nd position detecting portion to draw out the film sheet from the gap. Hereinafter, the 1 st position detecting unit and the 2 nd position detecting unit are sometimes referred to as position detecting units without distinction. Patent document 1 Japanese patent application laid-open No. 2013-181757 Disclosure of Invention However, the technique disclosed in patent document 1 has a problem in that, since the film sheet is pulled out in a state of being sandwiched between the 1 st position detecting section and the 2 nd position detecting section, when the friction coefficient of the position detecting section is high, when foreign matter bites between the position detecting section and the film sheet, or the like, the film sheet is difficult to pull out. Accordingly, in the technique disclosed in patent document 1, there is room for improvement in terms of simplification of the gap adjustment operation. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a linear transport system capable of simplifying a gap adjustment operation compared with the conventional one. In order to solve the above problems and achieve the object, a linear transport system according to the present invention includes a base of a transport path module that forms a transport path, a movable element that moves along the transport path, a stator that is provided on the base and forms a linear motor together with the movable element, a1 st position detection unit that is provided on either the base or the stator, and a 2 nd position detection unit that is provided on the movable element and detects a position of the movable element together with the 1 st position detection unit. The 1 st position detecting unit and the 2 nd position detecting unit are disposed with a1 st gap therebetween in the 1 st direction. The base is provided with a1 st positioning part which limits the movement of the 1 st position detecting part in the direction of narrowing the 1 st gap and allows the movement of the 1 st position detecting part in the direction of widening the 1 st gap. The movable element is provide