Linear conveying system and method of manufacturing a linear conveying system

Abstract

A linear conveyance system (1) has a base (5) of a conveyance path module that constitutes a conveyance path, a movable member (3) that moves along the conveyance path, a stator (6) that is provided to the base (5), a first position detection portion (7) that is provided to either one of the base (5) and the stator (6), and a second position detection portion (14) that is provided to the movable member (3) and detects the position of the movable member (3) together with the first position detection portion (7). The first position detection portion (7) and the second position detection portion (14) are arranged apart by a first gap (11) in a first direction. A first positioning portion (10) that restricts movement of the first position detection portion (7) in a direction in which the first gap (11) narrows and permits movement of the first position detection portion (7) in a direction in which the first gap (11) widens is provided to the base (5). A first adjustment mechanism that can adjust the position of the second position detection portion (14) in the first direction is provided to the movable member (3).

Description

Technical Field

[0001] This invention relates to a linear conveying system using a linear motor and a method for manufacturing the linear conveying system. Background Technology

[0002] Linear motors, consisting of a movable part and a stator, are used in the drive mechanism of linear conveyor systems for transporting parts and other items. A linear conveyor system is a system that moves a movable part along a predetermined track, such as a guide rail. In the case of a linear conveyor system with a guide rail, the guide rail and stator are held on a base. In a linear conveyor system, a magnetic field is generated by energizing the coils of the stator, and this magnetic field generates a propulsive force that moves the movable part along the track.

[0003] Linear conveying systems generally include a first position detection unit and a second position detection unit for detecting the position of movable components. The first position detection unit is located on the stator or base, and the second position detection unit is located on the movable component. The first and second position detection units are arranged with a gap between them. In a linear conveying system, the position of the movable component is detected by the first and second position detection units, and by positioning the movable component with high precision, the processing and assembly of components on the track can be performed.

[0004] To accurately detect the position of the moving parts, the gap between the first and second position detection units needs to be adjusted appropriately. In linear conveyor systems with multiple moving parts and multiple stators, the gap between the first and second position detection units needs to be adjusted in each moving part and each stator. The gap adjustment operation described above requires a significant amount of work and time; therefore, simplification of the gap adjustment operation is required.

[0005] Patent Document 1 describes a technique in which a low-friction thin film is inserted between a first position detection unit and a second position detection unit, and after adjusting the gap, the thin film is pulled out through the gap. Specifically, Patent Document 1 discloses a technique in which a thin film is inserted between the first and second position detection units, and after adjusting the gap by pressing the thin film against the first position detection unit via the second position detection unit, the relative positions of the first and second position detection units are fixed, and the thin film is pulled out through the gap. Hereinafter, the first and second position detection units will sometimes be referred to as position detection units without distinction.

[0006] Patent Document 1: Japanese Patent Application Publication No. 2013-181757 Summary of the Invention

[0007] However, the technology disclosed in Patent Document 1 has the following problem: since the diaphragm sheet, which is sandwiched between the first and second position detection units, needs to be pulled out, it becomes difficult to remove the diaphragm sheet when the coefficient of friction of the position detection units is high, or when foreign objects get stuck between the position detection units and the diaphragm sheet. Therefore, there is room for improvement in simplifying the gap adjustment operation in the technology disclosed in Patent Document 1.

[0008] The present invention was made in view of the above circumstances, and its purpose is to provide a simplified linear conveying system that can perform gap adjustment operations compared to the past.

[0009] To solve the aforementioned problems and achieve the objective, the linear conveying system of the present invention includes: a base for a conveying path module, which constitutes a conveying path; a movable member that moves along the conveying path; a stator disposed on the base and constituting a linear motor together with the movable member; a first position detection unit disposed on either the base or the stator; and a second position detection unit disposed on the movable member, which, together with the first position detection unit, detects the position of the movable member. The first and second position detection units are arranged apart by a first gap in a first direction. A first positioning unit is provided on the base to restrict the movement of the first position detection unit in the direction where the first gap narrows and to allow the movement of the first position detection unit in the direction where the first gap widens. A first adjustment mechanism is provided on the movable member to adjust the position of the second position detection unit in the first direction.

[0010] The effects of the invention

[0011] The linear conveying system of the present invention has the following effect: compared with the past, it can simplify the gap adjustment operation. Attached Figure Description

[0012] Figure 1 This is a top view showing the overall linear conveying system involved in Embodiment 1.

[0013] Figure 2 This is a side view of the linear conveying system according to Embodiment 1.

[0014] Figure 3 This is a cross-sectional view showing the linear conveying system according to Embodiment 1.

[0015] Figure 4 This is a perspective view showing the movable part of the linear conveying system according to Embodiment 1.

[0016] Figure 5 This is a perspective view showing the movable part of the linear conveying system according to Embodiment 1, from the perspective of... Figure 4 The diagram is viewed from the opposite side.

[0017] Figure 6 This is a cross-sectional view used to explain the first positioning step, temporary fixing step, second positioning step, first fixing step, third positioning step, and second fixing step of the manufacturing method of the linear conveying system according to Embodiment 1.

[0018] Figure 7 This is a cross-sectional view used to explain the moving and taking-out processes of the manufacturing method of the linear conveying system according to Embodiment 1.

[0019] Figure 8 This is a cross-sectional view of the linear conveying system involved in a variation of Embodiment 1.

[0020] Figure 9 This is a cross-sectional view of the linear conveying system involved in Variation 2 of Embodiment 1.

[0021] Figure 10 This is a cross-sectional view of the linear conveying system involved in Variation 3 of Embodiment 1.

[0022] Figure 11 This is a cross-sectional view showing the movable part, the first position detection unit, and the second position detection unit of the linear conveying system according to Embodiment 2.

[0023] Figure 12 This is a cross-sectional view showing the movable part, the first position detection unit, and the second position detection unit of the linear conveying system according to Embodiment 3.

[0024] Figure 13 This is a cross-sectional view showing the movable part, the first position detection unit, and the second position detection unit of the linear conveying system according to Embodiment 4.

[0025] Figure 14 This is a cross-sectional view showing the linear conveying system according to Embodiment 5.

[0026] Figure 15 This is a perspective view showing the movable part of the linear conveying system according to Embodiment 6.

[0027] Figure 16 This is a perspective view showing the movable part of the linear conveying system according to Embodiment 7.

[0028] Figure 17 This is a perspective view showing the movable part of the linear conveying system according to Embodiment 7, from the perspective of... Figure 16 The diagram is viewed from the opposite side.

[0029] Figure 18 This is a cross-sectional view used to illustrate the manufacturing method of the linear conveying system according to Embodiment 8. Detailed Implementation

[0030] Hereinafter, the linear conveying system and the manufacturing method of the linear conveying system according to the embodiments will be described in detail based on the accompanying drawings.

[0031] Implementation method 1.

[0032] Figure 1 This is a top view showing the overall linear conveying system 1 according to Embodiment 1. Figure 2 This is a side view showing the linear conveying system 1 according to Embodiment 1. The linear conveying system 1 is a system that uses a linear motor to convey articles. Figure 1 and Figure 2 Arrow T indicates the conveying direction. The linear conveying system 1 has multiple track modules 2 and multiple movable parts 3. Additionally, though not shown in the diagram, the linear conveying system 1 has a control device for controlling the movement of the movable parts 3. The multiple track modules 2 are joined together to form a conveyor line 4. Figure 1 The conveyor line 4 shown is a track-like shape formed by joining straight track modules 2 and curved track modules 2, but it can be modified appropriately. For example, the shape of the conveyor line 4 can be a straight line formed by joining straight track modules 2, or it can be a branch line that branches into multiple parts along the way. Multiple movable parts 3 each move along the conveyor line 4. That is, the conveying direction is the direction in which the movable parts 3 move along the conveyor line 4. Furthermore, the track module 2 is an example of a conveying path module, and the conveyor line 4 is an example of a conveying path.

[0033] Figure 3 This is a cross-sectional view showing the linear conveying system 1 according to Embodiment 1. Figure 3 A cross-section perpendicular to the conveying direction of movable member 3 is shown. In the following description, it will be compared with... Figure 3 The direction perpendicular to the paper is set as the X-axis direction, and it will be... Figure 3 The two mutually perpendicular directions within the plane of the paper are designated as the Y-axis and Z-axis. Furthermore, in the following explanation, the positive direction of the X-axis is designated as the conveying direction of the movable part 3, and the Y-axis is designated as the vertical direction. Additionally, in the following explanation, the positive direction of the Y-axis is designated as upward, and the negative direction of the Y-axis is designated as...

[0034] Set the orientation to downwards. Figure 3 In the following sectional views, only the movable part 3 and the base 5 described later are shown with sectional shading.

[0035] Each track module 2 has a base 5, a stator 6, a first position detection unit 7, and two guide rails 8 and 9.

[0036] The base 5 is a component that holds the stator 6, the first position detection unit 7, and the guide rails 8 and 9. The base 5 has a bottom 5a, a holding part 5b, and two guide rail mounting parts 5c and 5d. The bottom 5a extends in the Z-axis direction. The holding part 5b extends upward in the Y-axis direction from one end of the bottom 5a in the Z-axis direction toward the movable member 3. The stator 6 is mounted on the holding part 5b. The first position detection unit 7 is mounted on the holding part 5b, separated from the stator 6. The holding part 5b has a base side surface 5e facing the movable member 3. A first positioning part 10 is provided on the base side surface 5e. Details regarding the first positioning part 10 will be described later.

[0037] One guide rail mounting portion 5c extends in the Z-axis direction from near the boundary between the base side surface 5e of the retaining portion 5b and the bottom 5a, toward the movable member 3. Another guide rail mounting portion 5d extends in the Z-axis direction from the upper end of the retaining portion 5b, toward the movable member 3. The guide rail mounting portions 5c and 5d are spaced apart from each other in the Y-axis direction. The guide rail mounting portions 5c and 5d are arranged parallel to each other.

[0038] The stator 6 is a component mounted on the base 5 and, together with the movable member 3, constitutes a linear motor. The stator 6 is positioned between two guide rail mounting portions 5c and 5d, spaced apart. The stator 6 has a first stator side surface 6a facing the movable member 3 and a second stator side surface 6b facing the opposite side to the movable member 3. The stator 6 has a plurality of coils 6c arranged in the X-axis direction. Each coil 6c is positioned on the first stator side surface 6a. The second stator side surface 6b is in contact with the base side surface 5e.

[0039] A portion of the surface of the stator 6 facing the second position detection unit 14 (described later) contacts the first positioning unit 10. Hereinafter, in this embodiment, the surface of the stator 6 facing the second position detection unit 14 (described later) is sometimes referred to as the lower surface. The lower surface of the stator 6, near the boundary with the second stator side surface 6b, contacts the first positioning unit 10.

[0040] The stator 6 has a motor driver (not shown). The motor driver has a base plate for controlling the current flowing in each of the plurality of coils 6c. That is, the motor driver has the function of controlling the current in the coils 6c. The motor driver also has functions such as communication with the first position detection unit 7, communication between adjacent motor drivers, and communication with a higher-level control device. The motor driver may be integrated with the stator 6, the first position detection unit 7, and the guide rail 8 to form the track module 2, or it may be set separately from the track module 2.

[0041] The first position detection unit 7 is a component provided on the stator 6. The first position detection unit 7 is, for example, a substrate having multiple Hall elements. The first position detection unit 7 is provided on the lower surface of the stator 6. The first position detection unit 7 is separated from the portion of the lower surface of the stator 6 that contacts the first positioning unit 10 in the Z-axis direction.

[0042] One guide rail 8 is disposed on one guide rail mounting part 5c. Another guide rail 9 is disposed on another guide rail mounting part 5d. The guide rail 8 is disposed on the lower surface of the guide rail mounting part 5c. The guide rail 9 is disposed on the upper surface of the guide rail mounting part 5d.

[0043] Each movable member 3 has a movable member body 13, a second position detection unit 14, and multiple guide rollers 15 and 16. The movable member 3 moves along the conveying path by moving along guide rails 8 and 9.

[0044] The movable body 13 has a magnet mounting portion 13a and two guide roller mounting portions 13b and 13c. In this embodiment, the magnet mounting portion 13a and the two guide roller mounting portions 13b and 13c are integrally formed. The magnet mounting portion 13a extends in the Y-axis direction. The magnet mounting portion 13a is spaced apart from the stator 6 and the base 5 in the Z-axis direction. The magnet mounting portion 13a has a first movable member side surface 13d facing the stator 6 and a second movable member side surface 13e facing the side opposite to the stator 6.

[0045] The movable body 13 has a motor magnet 3a. The motor magnet 3a is disposed on the side 13d of the first movable member. The motor magnet 3a is, for example, a plurality of permanent magnets. The motor magnet 3a is composed of permanent magnets with S poles and permanent magnets with N poles arranged alternately in the X-axis direction. The motor magnet 3a and the coil 6c are aligned in the Y-axis direction. That is, the motor magnet 3a and the coil 6c are arranged in a position opposite to each other. The motor magnet 3a is arranged with a second gap 17 between it and the coil 6c in the Z-axis direction. Hereinafter, the width direction of the second gap 17 will be referred to as the coil gap direction G2. In other words, the second gap 17 is the distance between the motor magnet 3a and the coil 6c that are opposite to each other. In addition, the coil gap direction G2 is the direction along the distance between the motor magnet 3a and the coil 6c that are opposite to each other. In this embodiment, the coil gap direction G2 is a second direction and is a direction parallel to the Z-axis direction. A magnetic field is generated by the current flowing in the coil 6c, and this magnetic field generates a propulsive force in the motor magnet 3a, which enables the movable part 3 to move.

[0046] The second position detection unit 14 is a component provided on the movable member 3 and, together with the first position detection unit 7, detects the position of the movable member 3. The second position detection unit 14 is, for example, a proportional magnet having multiple magnetic poles. The first position detection unit 7 and the second position detection unit 14 are aligned in the Z-axis direction. That is, the first position detection unit 7 and the second position detection unit 14 are arranged in positions opposite to each other. The first position detection unit 7 and the second position detection unit 14 are arranged separated by a first gap 11 in the Y-axis direction. Hereinafter, the width direction of the first gap 11 will be referred to as the detection gap direction G1. In other words, the first gap 11 is the distance between the opposing first position detection units 7 and the opposing second position detection units 14. Furthermore, the detection gap direction G1 is the direction along the distance between the opposing first position detection units 7 and the opposing second position detection units 14. In this embodiment, the detection gap direction G1 is a first direction and is a direction parallel to the Y-axis direction. In this embodiment, the detection gap direction G1 is a direction perpendicular to the coil gap direction G2. The second position detection unit 14 is provided on the side 13d of the first movable member. The second position detection unit 14 is separated from the motor magnet 3a and positioned below the motor magnet 3a. Furthermore, the structure of the first position detection unit 7 and the second position detection unit 14 is not limited to the illustrated example, as long as the position of the movable member 3 can be detected. The method for detecting the position of the movable member 3 can, for example, be a method using an optical system.

[0047] One guide roller mounting portion 13b extends from the lower end of the magnet mounting portion 13a toward the base 5 in the Z-axis direction. Another guide roller mounting portion 13b is separated from the guide rail mounting portion 5c and positioned below it. Another guide roller mounting portion 13c extends from the upper end of the magnet mounting portion 13a toward the base 5 in the Z-axis direction. Another guide roller mounting portion 13c is separated from the guide rail mounting portion 5d and positioned above it. The guide roller mounting portions 13b and 13c are spaced apart from each other in the Y-axis direction. The guide roller mounting portions 13b and 13c are arranged parallel to each other.

[0048] Guide rollers 15 and 16 and guide rails 8 and 9 are components used to hold the movable member 3 so that the movable member 3 does not move in any direction other than the conveying direction. Multiple guide roller shafts 13f extending in the Y-axis direction are provided on the upper surface of the guide roller mounting portion 13b. One guide roller 15 is provided on each guide roller shaft 13f, and rotates around the guide roller shaft 13f. Guide rollers 15 are arranged in groups of two. Each group of guide rollers 15 is arranged separately from each other in the Z-axis direction, separated by guide rails 8.

[0049] Multiple guide roller shafts 13g extending in the Y-axis direction are provided on the lower surface of the guide roller mounting part 13c. One guide roller 16 is provided on each guide roller shaft 13g and rotates around the guide roller shaft 13g. The guide rollers 16 are arranged in groups of two. Each group of guide rollers 16 is arranged separately from each other in the Z-axis direction, separated by a guide rail 9.

[0050] In this embodiment, guide rollers 15 and 16 are flat rollers, but there are no particular limitations as long as the movable member 3 can be held in a direction other than the conveying direction. Similarly, in this embodiment, guide rails 8 and 9 are flat guide rails, but there are no particular limitations as long as the movable member 3 can be held in a direction other than the conveying direction. For example, guide rollers 15 and 16 can be V-shaped rollers, and the grooves in guide rails 8 and 9 for the guide rollers 15 and 16 to engage can be V-shaped. Furthermore, the linear conveying system 1 can also be configured to hold the movable member 3 using a unit different from the guide rollers 15 and 16 and guide rails 8 and 9.

[0051] Next, refer to Figure 3 The first positioning part 10 will be described in detail.

[0052] A first positioning part 10 is provided on the base 5 to define the positions of the stator 6 and the first position detection part 7 in the detection gap direction G1 during the manufacturing of the linear conveyor system 1. The first positioning part 10 restricts the movement of the first position detection part 7 in the direction narrowing towards the first gap 11 during the manufacturing of the linear conveyor system 1, while allowing movement of the first position detection part 7 in the direction widening towards the first gap 11. In this embodiment, the first positioning part 10 is a step extending in the Z-axis direction. With the stator 6 in contact with the first positioning part 10, a space 12 is provided on the opposite side of the second position detection part 14, across the stator 6, to allow movement of the stator 6 in the direction widening towards the first gap 11. The space 12 is formed between the upper surface of the stator 6 and the lower surface of the guide rail mounting part 5d.

[0053] Next, refer to Figure 4 and Figure 5 The first adjustment mechanism 18 will be explained. Figure 4 This is a perspective view of the movable part 3 of the linear conveying system 1 according to Embodiment 1. Figure 5 This is a perspective view showing the movable part 3 of the linear conveying system 1 according to Embodiment 1, from the perspective of... Figure 4 The diagram is viewed from the opposite side.

[0054] The movable member 3 is provided with a first adjustment mechanism 18 capable of adjusting the position of the second position detection part 14 in the detection part gap direction G1. The first adjustment mechanism 18 moves the second position detection part 14 in the direction where the first gap 11 narrows and in the direction where the first gap 11 widens. The first adjustment mechanism 18 is provided in the magnet mounting part 13a. In the movable member 3 of this embodiment, the first adjustment mechanism 18 is constituted by an elongated hole 18a, whose length in the Y-axis direction is longer than its length in the X-axis direction, and a fixing screw 18b. The elongated hole 18a passes through the magnet mounting part 13a in the Z-axis direction. The elongated hole 18a is a through hole that is longer in the Y-axis direction than in the X-axis direction. A screw hole 14a communicating with the elongated hole 18a is formed in the second position detection part 14. The fixing screw 18b is inserted into the elongated hole 18a and the screw hole 14a. The fixing screw 18b, inserted into the elongated hole 18a, is screwed into the screw hole 14a, thereby fixing the second position detection unit 14 to the movable member 3. The length dimension of the elongated hole 18a in the Y-axis direction is greater than the diameter of the fixing screw 18b. With this structure, the fixing screw 18b inserted into the elongated hole 18a can be moved in the Y-axis direction. When adjusting the position of the second position detection unit 14 in the Y-axis direction, the position of the fixing screw 18b inserted into the elongated hole 18a in the Y-axis direction is changed by screwing the fixing screw 18b into the screw hole 14a.

[0055] Next, refer to Figure 6 and Figure 7 The manufacturing method of the linear conveying system 1 according to this embodiment will be described. Figure 6 This is a cross-sectional view used to explain the first positioning step, temporary fixing step, second positioning step, first fixing step, third positioning step, and second fixing step of the manufacturing method of the linear conveying system 1 according to Embodiment 1. Figure 7 This is a cross-sectional view used to explain the moving and taking-out processes of the manufacturing method of the linear conveying system 1 according to Embodiment 1. For example... Figure 6 and Figure 7 As shown, the manufacturing method of the linear conveying system 1 includes a first positioning step, a temporary fixing step, a second positioning step, a first fixing step, a moving step, a taking out step, a third positioning step, and a second fixing step.

[0056] like Figure 6 As shown, the first positioning process involves bringing the stator 6 into contact with the first positioning part 10 to restrict the movement of the first position detection part 7 in the direction of narrowing towards the first gap 11, thereby positioning the first position detection part 7 in the detection gap direction G1. In this first positioning process, a portion of the lower surface of the stator 6 is brought into contact with the step of the first positioning part 10. In this first positioning process, the positions of the stator 6 and the first position detection part 7 in the detection gap direction G1 are determined.

[0057] The temporary fixing process is the process of fixing the stator 6 to the base 5. In the temporary fixing process, the stator 6 is fixed to the base 5 at the position of the stator 6 and the first position detection unit 7 determined by the first positioning process using fixing screws (not shown). By fixing the stator 6 to the base 5, the first position detection unit 7 mounted on the stator 6 is also fixed to the base 5. The temporary fixing process can be omitted, but by fixing the stator 6 and the first position detection unit 7 to the base 5 through the temporary fixing process, the possibility of the stator 6 and the first position detection unit 7 shifting from the position determined by the first positioning process can be eliminated in each process of manufacturing the linear conveyor system 1, including the second positioning process described later, thus enabling each process to proceed smoothly.

[0058] The second positioning process involves clamping the gap adjustment member 19 between the first position detection unit 7 and the second position detection unit 14, thereby positioning the detection gap direction G1 of the second position detection unit 14. In this second positioning process, the second position detection unit 14 is moved towards the first position detection unit 7, pressing the gap adjustment member 19 against the first position detection unit 7, thereby determining the position of the second position detection unit 14 in the detection gap direction G1. The structure of the gap adjustment member 19 is not particularly limited as long as pressing the gap adjustment member 19 against the first position detection unit 7 determines the position of the second position detection unit 14 in the detection gap direction G1. The shape of the gap adjustment member 19 can be, for example, a sheet or a plate. The material of the gap adjustment member 19 can be, for example, resin or metal. The thickness of the gap adjustment member 19 in the detection gap direction G1 is the same as the width of the desired first gap 11.

[0059] The first fixing process involves fixing the second position detection unit 14 to the movable member 3 while the gap adjustment component 19 is clamped between the first position detection unit 7 and the second position detection unit 14. In the first fixing process, the second position detection unit 14 is... Figure 4 and Figure 5 The fixing screw 18b, which is inserted into the elongated hole 18a, is screwed into the screw hole 14a, thereby fixing the second position detection part 14 to the movable part 3.

[0060] like Figure 7 As shown, the moving process involves moving the first position detection unit 7 in the direction that widens the first gap 11. During this moving process, after loosening a fixing screw (not shown), and ensuring the stator 6 can move relative to the base 5, the stator 6, on which the first position detection unit 7 is located, is moved in the direction that widens the first gap 11. As a result, the width of the first gap 11 increases compared to the thickness of the gap adjustment member 19, thus allowing the gap adjustment member 19 to be easily removed from the first gap 11.

[0061] The removal process is the process of removing the gap adjustment component 19 from the first gap 11. In the removal process, the gap adjustment component 19 is moved in the X-axis direction, which is perpendicular to the gap direction G1 of the detection section, and removed from the first gap 11.

[0062] like Figure 6 As shown, the third positioning process involves bringing the stator 6 into contact with the first positioning part 10 to restrict the movement of the first position detection part 7 in the direction of narrowing towards the first gap 11, thereby positioning the first position detection part 7 in the detection gap direction G1. In this third positioning process, a portion of the lower surface of the stator 6 is brought into contact with the step of the first positioning part 10. In this third positioning process, the positions of the stator 6 and the first position detection part 7 in the detection gap direction G1 are determined.

[0063] The second fixing process is the process of fixing the stator 6 to the base 5. In the second fixing process, the stator 6 is fixed to the base 5 using fixing screws (not shown). By performing the above processes, assembly and manufacturing are possible. Figure 3 The linear conveyor system 1 shown.

[0064] Next, the effects of the linear conveying system 1 according to this embodiment will be explained.

[0065] In this embodiment, such as Figure 3 As shown, a first positioning part 10 is provided on the base 5 to restrict the movement of the first position detection part 7 in the direction of narrowing of the first gap 11, and to allow the movement of the first position detection part 7 in the direction of widening of the first gap 11. Furthermore, in this embodiment, as... Figure 4 and Figure 5 As shown, a first adjustment mechanism 18 is provided on the movable member 3, capable of adjusting the position of the second position detection unit 14 in the detection unit gap direction G1. Through these structures, as... Figure 6 As shown, after the gap adjustment component 19 is pressed against the first position detection unit 7 by the second position detection unit 14, and the second position detection unit 14 is fixed to the movable member 3, as... Figure 7As shown, the first position detection unit 7 can be moved in the direction that widens the first gap 11. Furthermore, when the width of the first gap 11 is greater than the thickness of the gap adjustment member 19, the gap adjustment member 19 is removed. Therefore, compared to the case where the gap adjustment member 19 is pulled out while sandwiched between the first position detection unit 7 and the second position detection unit 14, the gap adjustment member 19 can be removed more easily. That is, in this embodiment, when the gap adjustment member 19 is removed, it does not rub against the first position detection unit 7 and the second position detection unit 14. Therefore, even when the coefficient of friction of the position detection units is high, the gap adjustment member 19 can be easily removed. Furthermore, in this embodiment, when removing the gap adjustment component 19, even if a foreign object gets stuck between the gap adjustment component 19 and the first position detection unit 7 and the second position detection unit 14, it is not necessary to pull the gap adjustment component 19 out while it is being clamped by the first position detection unit 7 and the second position detection unit 14. Therefore, damage to the first position detection unit 7 and the second position detection unit 14 caused by foreign objects can be prevented, and the gap adjustment component 19 can be easily removed. Therefore, in this embodiment, the operation of adjusting the first gap 11 can be simplified compared to the conventional method.

[0066] In this embodiment, such as Figure 6 As shown, the position of the first position detection unit 7 is uniquely determined by the first positioning unit 10. Therefore, even if the first position detection unit 7 is temporarily moved and then fixed back to the base 5, the positional deviation of the first position detection unit 7 can be suppressed before the movement and after the re-fixation. Thus, the relative positional deviation between the first position detection unit 7 and the second position detection unit 14 can be suppressed before the movement and after the re-fixation, so the readjustment of the first gap 11 is not required.

[0067] As mentioned above, in this embodiment, such as Figure 7 As shown, the gap adjusting member 19 is removed when the width of the first gap 11 is greater than the thickness of the gap adjusting member 19. Therefore, damage to the gap adjusting member 19, the first position detection unit 7, and the second position detection unit 14 can be prevented when the gap adjusting member 19 is removed.

[0068] In this embodiment, such as Figure 6 As shown, the first position detection unit 7 and the second position detection unit 14 are positioned using the first positioning unit 10 as a reference. Therefore, after assembling multiple track modules 2 and multiple movable parts 3, in situations such as replacing a faulty stator 6 or changing the path of the conveyor line 4, adjustments to the first gap 11 are unnecessary; the new stator 6 can be fixed to the base 5 simply by contacting the first positioning unit 10. This reduces the manufacturing time of the linear conveyor system 1.

[0069] According to the manufacturing method of the linear conveying system 1 described in this embodiment, as follows: Figure 6 and Figure 7 As shown, the first position detection unit 7 and the second position detection unit 14 can be assembled into the linear conveying system 1 without being affected by the tolerances of the guide rails 8 and 9, guide rollers 15 and 16, base 5 and movable part 3. As a result, the manufacturing cost of the linear conveying system 1 can be reduced.

[0070] In this embodiment, such as Figure 4 and Figure 5 As shown, a first adjustment mechanism 18 is provided on the movable member 3, capable of adjusting the position of the second position detection unit 14 in the detection unit gap direction G1, which is the first direction. Through this structure, as... Figure 6 As shown, when the gap adjustment member 19 is pressed against the position of the first position detection member 7 by the second position detection member 14, the second position detection member 14 can be fixed to the movable member 3.

[0071] In this embodiment, such as Figure 3 As shown, the stator 6 has a coil 6c, and the movable member 3 has a motor magnet 3a arranged in the coil gap direction G2, separated from the coil 6c by a second gap 17. The gap direction G1 of the detection section is perpendicular to the coil gap direction G2. With this structure, the first gap 11 can be adjusted without affecting the second gap 17. That is, the first gap 11 can be adjusted independently of the second gap 17. As a result, the adjustment of the first gap 11 can be suppressed from affecting the thrust of the movable member 3.

[0072] Next, a variation of Implementation 1 will be described.

[0073] Figure 3 The first positioning part 10 shown is not particularly limited if it is configured to restrict the movement of the first position detection part 7 in the direction of narrowing of the first gap 11, and allow the movement of the first position detection part 7 in the direction of widening of the first gap 11. For example, the first positioning part 10 could be... Figure 8 The structure shown. Figure 8 This is a cross-sectional view of the linear conveying system 1 according to a variation of embodiment 1. Figure 8The first positioning portion 10 shown is a pin mounted on the base 5 and protruding from the base 5 toward the stator 6. The first positioning portion 10 is formed separately from the base 5. The first positioning portion 10 protrudes toward the stator 6 compared to the side surface 5e of the base. When the first positioning portion 10 is a pin, it is preferable that at least two pins are arranged in the X-axis direction. Alternatively, the first positioning portion 10 may also be a protrusion integrally formed with the base 5 and protruding from the base 5 toward the stator 6. The shape of the protrusion is not particularly limited. The shape of the protrusion may be, for example, cylindrical, or a square prism that is longer in the X-axis direction than in the Y-axis direction.

[0074] The first positioning part 10 can be, for example, Figure 9 The structure shown. Figure 9 This is a cross-sectional view of the linear conveying system 1 according to a variation 2 of embodiment 1. Figure 9 The first positioning part 10 shown is composed of a protrusion 10a protruding from the stator 6 toward the base 5 and a hole 10b provided on the base 5 for the protrusion 10a of the stator 6 to fit into. The shape of the protrusion 10a is not particularly limited. For example, the shape of the protrusion 10a can be cylindrical, or it can be a square prism that is longer in the X-axis direction than in the Y-axis direction. Alternatively, a pin can be used instead of the protrusion 10a. The shape of the hole 10b can be appropriately modified to match the shape of the protrusion 10a or the pin.

[0075] In the aforementioned embodiment 1, the detection gap direction G1 is a direction perpendicular to the coil gap direction G2, but as Figure 10 As shown, the detection gap direction G1 can also be a direction parallel to the coil gap direction G2. Figure 10 This is a cross-sectional view of the linear conveying system 1 according to Variation 3 of Embodiment 1. A stator 6 is mounted on a guide rail mounting portion 5c. A first position detection portion 7 is also mounted on the guide rail mounting portion 5c, separated from the stator 6. A first positioning portion 10 is provided on the surface of the guide rail mounting portion 5c facing the stator 6, used during the manufacturing of the linear conveying system 1 to define the positions of the stator 6 and the first position detection portion 7 in the detection portion gap direction G1. In this variation, the upward-facing surface of the guide rail mounting portion 5c opposite to the stator 6 is the upper surface. The first positioning portion 10 restricts the movement of the first position detection portion 7 in the direction narrowing towards the first gap 11 during the manufacturing of the linear conveying system 1, and allows the first position detection portion 7 to move in the direction widening towards the first gap 11. In this variation, the first positioning portion 10 is a step extending from the upper surface of the guide rail mounting portion 5c in the Y-axis direction. The first positioning part 10 is disposed on the upper surface of a guide rail mounting part 5c.

[0076] The surface of the stator 6 facing the guide rail mounting portion 5c contacts the upper surface of the guide rail mounting portion 5c. In this modified example, the surface of the stator 6 facing the guide rail mounting portion 5c is the lower surface. A portion of the stator 6 contacts the first positioning portion 10. Specifically, the boundary portion of the first stator side surface 6a of the stator 6 near the lower surface contacts the first positioning portion 10. With the stator 6 in contact with the first positioning portion 10, a space 12 is provided on the opposite side of the stator 6 from the second position detection portion 14 to allow movement of the stator 6 in a direction that widens towards the first gap 11. The space 12 is formed between the second stator side surface 6b and the base side surface 5e of the stator 6.

[0077] The first position detection unit 7 is disposed on the first stator side surface 6a of the stator 6. The first position detection unit 7 is separated from the portion of the first stator side surface 6a that contacts the first positioning part 10 in the Y-axis direction. The first position detection unit 7 is disposed above the first positioning part 10. Furthermore, the first position detection unit 7 is disposed below the coil 6c.

[0078] The first position detection unit 7 and the second position detection unit 14 are aligned in the Y-axis direction. That is, the first position detection unit 7 and the second position detection unit 14 are arranged opposite each other. The first position detection unit 7 and the second position detection unit 14 are arranged separated by a first gap 11 in the Z-axis direction. The detection unit gap direction G1 is a direction parallel to the Z-axis direction. The coil gap direction G2 is a direction parallel to the Z-axis direction. That is, in this modified example, the detection unit gap direction G1 is a direction parallel to the coil gap direction G2.

[0079] In the modified example described above, similar to Embodiment 1, the operation of adjusting the first gap 11 can be simplified compared to the conventional method. Furthermore, the manufacturing time of the linear conveyor system 1 can be shortened, and the manufacturing cost of the linear conveyor system 1 can be reduced.

[0080] Implementation method 2.

[0081] Next, refer to Figure 11 The linear conveying system 1A according to Embodiment 2 will be described. Figure 11 This is a cross-sectional view showing the movable member 3, the first position detection unit 7, and the second position detection unit 14 of the linear conveying system 1A according to Embodiment 2. In this embodiment, the structure of the first adjustment mechanism 18 differs from that in Embodiment 1. Furthermore, in Embodiment 2, parts that are repeated in Embodiment 1 are labeled with the same reference numerals and their descriptions are omitted. Figure 11 In the diagram, the first position detection unit 7 is illustrated with a dashed line, and the cross-sectional shading of some components is omitted.

[0082] The first adjustment mechanism 18 is composed of a through hole 18c, a receiving member 18d, a first wedge member 18e, a second wedge member 18f, a first fixing screw 18g, an adjusting screw 18h, and a second fixing screw 18i. The first adjustment mechanism 18 moves the second position detection unit 14 in the direction where the first gap 11 narrows and in the direction where the first gap 11 widens.

[0083] A through hole 18c is formed in the magnet mounting portion 13a. The through hole 18c includes an elongated hole 18j with an opening on the second movable member side surface 13e, a length in the Y-axis direction longer than its length in the X-axis direction, and a plurality of insertion holes 18k extending from the bottom surface of the elongated hole 18j to the first movable member side surface 13d. The head of an adjusting screw 18h and the head of a first fixing screw 18g are disposed in the elongated hole 18j. The plurality of insertion holes 18k are spaced apart from each other in the Y-axis direction. In this embodiment, there are two insertion holes 18k. The adjusting screw 18h is inserted into one insertion hole 18k, and the first fixing screw 18g is inserted into the other insertion hole 18k.

[0084] The housing member 18d is a member that houses the first wedge-shaped member 18e and the second wedge-shaped member 18f. The housing member 18d opens toward the first position detection unit 7. The housing member 18d has a bottom wall portion 18m and a side wall portion 18n. The bottom wall portion 18m extends in the Z-axis direction from the magnet mounting portion 13a toward the base 5 (not shown). The side wall portion 18n extends in the Y-axis direction from the front end of the bottom wall portion 18m toward the first position detection unit 7. A screw hole 18o is formed in the bottom wall portion 18m, which can communicate with an insertion hole 18k. A first fixing screw 18g is inserted into the screw hole 18o. The first fixing screw 18g is screwed into the insertion hole 18k of the magnet mounting portion 13a and the screw hole 18o of the housing member 18d, thereby fixing the housing member 18d to the magnet mounting portion 13a. A first wedge-shaped member 18e, a second wedge-shaped member 18f, and a second position detection unit 14 are stacked on the bottom wall portion 18m of the housing member 18d. The first wedge-shaped member 18e, the second wedge-shaped member 18f, and the second position detection unit 14 are arranged sequentially from the direction approaching the bottom wall portion 18m of the housing member 18d. The first wedge-shaped member 18e and the second wedge-shaped member 18f are disposed between the magnet mounting portion 13a and the side wall portion 18n.

[0085] The first wedge-shaped member 18e is disposed with a gap between it and the magnet mounting portion 13a and the side wall portion 18n in the Z-axis direction. The first wedge-shaped member 18e has a bottom surface 18p and a first inclined surface 18q. The bottom surface 18p extends along the bottom wall portion 18m in the Z-axis direction. The first inclined surface 18q is oblique to the Y-axis direction. The first inclined surface 18q is inclined in the direction of separation from the first position detection portion 7 as it moves from the movable member 3 toward the base 5. A screw hole 18r is formed in the first wedge-shaped member 18e, which can communicate with an insertion hole 18k. An adjusting screw 18h is inserted into the screw hole 18r. Loosening the adjusting screw 18h moves the first wedge-shaped member 18e in the + direction in the Z-axis direction. Tightening the adjusting screw 18h moves the first wedge-shaped member 18e in the - direction in the Z-axis direction. A screw hole 18s is formed in the first wedge-shaped member 18e, which opens in the first inclined surface 18q. The second fixing screw 18i is inserted into the screw hole 18s.

[0086] The second wedge-shaped member 18f has a mounting surface 18t, a mounting surface 18u, and a second inclined surface 18v. The mounting surface 18t extends linearly in the Z-axis direction from the movable member 3 toward the base 5. A second position detection part 14 is provided on the mounting surface 18t. The mounting surface 18u is continuous with the end of the mounting surface 18t in the direction toward the base 5. The second inclined surface 18v is oblique to the Y-axis direction. The second inclined surface 18v is inclined in the direction of separation from the first position detection part 7 in the direction from the movable member 3 toward the base 5. The second inclined surface 18v is in surface contact with the first inclined surface 18q. The second inclined surface 18v is parallel to the first inclined surface 18q and the mounting surface 18u. A screw hole 18w is formed in the second wedge-shaped member 18f, which opens into the second inclined surface 18v. A second fixing screw 18i is inserted into the screw hole 18w. As the first wedge member 18e moves along the Z-axis, the second wedge member 18f moves along the Y-axis. Specifically, as the first wedge member 18e moves in a positive direction along the Z-axis, the second wedge member 18f moves in a positive direction along the Y-axis. As the first wedge member 18e moves in a negative direction along the Z-axis, the second wedge member 18f moves in a negative direction along the Y-axis.

[0087] The first fixing screw 18g is used to fix the housing member 18d to the magnet mounting part 13a. The axis of the first fixing screw 18g is aligned with the Z-axis direction. The adjusting screw 18h is used to move the first wedge member 18e in the Z-axis direction to adjust the position of the second position detection part 14 provided on the second wedge member 18f in the Y-axis direction. The axis of the adjusting screw 18h is aligned with the Z-axis direction. The second fixing screw 18i is used to fix the first wedge member 18e and the second wedge member 18f immovably after the position of the second position detection part 14 in the Y-axis direction is determined. The axis of the second fixing screw 18i is oblique to the Y-axis direction.

[0088] Next, the effects of the linear conveying system 1A according to this embodiment will be explained.

[0089] If the adjusting screw 18h, which is inserted into the insertion hole 18k of the magnet mounting part 13a and the screw hole 18r of the first wedge member 18e, is loosened, the first inclined surface 18q slides on the second inclined surface 18v, and the first wedge member 18e moves in the Z-axis direction toward the base 5. Accompanying the movement of the first wedge member 18e toward the base 5, the first wedge member 18e gradually moves from the thinner portion to the thicker portion of the second wedge member 18f, and the second wedge member 18f moves in the Y-axis direction toward the narrowing of the first gap 11. Consequently, the second position detection part 14 provided on the second wedge member 18f moves in the direction where the first gap 11 narrows.

[0090] On the other hand, if the adjusting screw 18h, which is inserted into the insertion hole 18k of the magnet mounting part 13a and the screw hole 18r of the first wedge member 18e, is tightened, the first inclined surface 18q slides on the second inclined surface 18v, and at the same time, the first wedge member 18e moves in the Z-axis direction, that is, in the direction of separation from the base 5. Accompanying the movement of the first wedge member 18e in the direction of separation from the base 5, the first wedge member 18e gradually moves from the thick part to the thin part of the second wedge member 18f, and the second wedge member 18f moves in the Y-axis direction, that is, in the direction of widening of the first gap 11. As a result, the second position detection part 14 provided on the second wedge member 18f moves in the direction of widening of the first gap 11.

[0091] Furthermore, by pressing the gap adjustment component 19 (not shown) against the first position detection unit 7 via the second position detection unit 14, the position of the second position detection unit 14 in the Y-axis direction is determined, and then the second fixing screw 18i is screwed into the screw hole 18w of the second wedge component 18f and the screw hole 18s of the first wedge component 18e. Thus, the first wedge component 18e and the second wedge component 18f are fixed immovably, and the second position detection unit 14 is fixed to the movable member 3.

[0092] In this embodiment, the first adjustment mechanism 18 includes: a first wedge-shaped member 18e, which moves in the Z-axis direction by rotating the adjusting screw 18h; and a second wedge-shaped member 18f, which moves in the Y-axis direction along with the movement of the first wedge-shaped member 18e. With this structure, the position of the second position detection unit 14 provided on the second wedge-shaped member 18f in the Y-axis direction, i.e., the position of the second position detection unit 14 in the detection gap direction G1, can be easily adjusted. Therefore, the gap adjustment member 19 can be easily pressed against the first position detection unit 7 by the second position detection unit 14. Furthermore, the first adjustment mechanism 18 is not limited to the illustrated example; any structure that combines multiple members having inclined surfaces that are oblique to the detection gap direction G1, and adjusts the position of the second position detection unit 14 in the detection gap direction G1 by offsetting the multiple members from each other, is acceptable. In this embodiment, the second position detection unit 14 and the second wedge-shaped member 18f are formed separately, but the second position detection unit 14 and the second wedge-shaped member 18f can also be formed integrally.

[0093] Implementation method 3.

[0094] Next, refer to Figure 12 The linear conveying system 1B according to Embodiment 3 will be described. Figure 12 This is a cross-sectional view showing the movable part 3, the first position detection unit 7, and the second position detection unit 14 of the linear conveying system 1B according to Embodiment 3. In this embodiment, the structure of the first adjustment mechanism 18 differs from that in Embodiment 1. Furthermore, in Embodiment 3, parts that are repeated with those in Embodiments 1 and 2 are labeled with the same reference numerals and their descriptions are omitted. Figure 12 In the diagram, the first position detection unit 7 is illustrated with a dashed line, and the cross-sectional shading of some components is omitted.

[0095] The first adjustment mechanism 18 is constructed via a through hole 18c, a receiving member 18d, a force-applying member 18x, a first fixing screw 18g, and a second fixing screw 18y. The structure of the through hole 18c, the receiving member 18d, and the first fixing screw 18g is the same as in Embodiment 2 described above. The first adjustment mechanism 18 causes the second position detection unit 14 to move in the direction in which the first gap 11 narrows and in the direction in which the first gap 11 widens.

[0096] The force-applying component 18x ​​and the second position detection unit 14 are housed in the housing component 18d. The force-applying component 18x ​​and the second position detection unit 14 are stacked on the bottom wall portion 18m of the housing component 18d. The force-applying component 18x ​​and the second position detection unit 14 are arranged sequentially from the direction approaching the bottom wall portion 18m of the housing component 18d. The force-applying component 18x ​​and the second position detection unit 14 are disposed between the magnet mounting portion 13a and the side wall portion 18n.

[0097] The force-applying component 18x ​​is disposed between the bottom wall portion 18m and the second position detection portion 14, and applies force to the second position detection portion 14 in the direction that narrows towards the first gap 11. The force-applying component 18x ​​is extendable and retractable in the detection portion gap direction G1, i.e., the Y-axis direction. The force-applying component 18x ​​can be rubber or the like, but in this embodiment it is a spring. The spring is, for example, a coil spring or a leaf spring.

[0098] The second position detection section 14 has a screw hole 14a that communicates with the insertion hole 18k. The second fixing screw 18y is inserted into the screw hole 14a.

[0099] The second fixing screw 18y is a component used to fix the position of the second position detection unit 14 in the Y-axis direction after the position of the second position detection unit 14 in the Y-axis direction is determined. The second fixing screw 18y can be attached to and detached from the movable member 3 and the second position detection unit 14. The position of the second fixing screw 18y can be changed to a fixed position in which the second position detection unit 14 is fixed to the movable member 3 without movement against the applied force of the force-applying member 18x, and to a released position in which movement of the second position detection unit 14 caused by the applied force of the force-applying member 18x is allowed. When the position of the second fixing screw 18y is in the fixed position, the second fixing screw 18y is inserted into the insertion hole 18k of the movable member 3 and the screw hole 14a of the second position detection unit 14, thereby fixing the second position detection unit 14 to the movable member 3 without movement. When the second fixing screw 18y is in the released position, the second fixing screw 18y is pulled out from at least the screw hole 14a of the second position detection unit 14 to allow movement of the second position detection unit 14. The axial direction of the second fixing screw 18y is aligned with the Z-axis direction.

[0100] Next, the effects of the linear conveying system 1B according to this embodiment will be explained.

[0101] If the second fixing screw 18y, which is inserted into the insertion hole 18k of the movable member 3 and the screw hole 14a of the second position detection part 14, is loosened, and the second fixing screw 18y is pulled out from at least the screw hole 14a of the second position detection part 14, the second position detection part 14 will move towards the + side in the Y-axis direction, i.e., the direction in which the first gap 11 narrows, by the force applied by the force application member 18x.

[0102] Furthermore, by pressing the gap adjustment component 19 (not shown) against the first position detection unit 7 via the second position detection unit 14, the position of the second position detection unit 14 in the Y-axis direction is determined, and then the second fixing screw 18y is inserted into the insertion hole 18k of the movable member 3 and the screw hole 14a of the second position detection unit 14. Thus, the second position detection unit 14 is fixed to the movable member 3 without moving. Furthermore, in Figure 12In this configuration, the length of the insertion hole 18k in the Y-axis direction is the same as the diameter of the second fixing screw 18y, but in reality, the length of the insertion hole 18k in the Y-axis direction is greater than the diameter of the second fixing screw 18y. If configured as described above, after adjusting the position of the second position detection unit 14 in the Y-axis direction (i.e., the position of the detection gap direction G1 of the second position detection unit 14) by the extension and retraction of the force-applying member 18x, the second fixing screw 18y can be reliably inserted into the insertion hole 18k of the movable member 3 and the screw hole 14a of the second position detection unit 14, and the second position detection unit 14 can be fixed to the movable member 3 without moving.

[0103] In this embodiment, the first adjustment mechanism 18 has a force-applying member 18x that applies force to the second position detection unit 14 in the direction where the first gap 11 narrows, and a second fixing screw 18y that can be detached from the movable member 3 and the second position detection unit 14. The position of the second fixing screw 18y can be changed to a fixed position that prevents the second position detection unit 14 from moving against the applied force of the force-applying member 18x, and a release position that allows movement of the second position detection unit 14 caused by the applied force of the force-applying member 18x. With these structures, the position of the second position detection unit 14 in the Y-axis direction, that is, the position of the second position detection unit 14 in the detection gap direction G1, can be easily adjusted, and the gap adjustment member 19 (not shown) can be easily pressed against the first position detection unit 7 by the second position detection unit 14.

[0104] Implementation method 4.

[0105] Next, refer to Figure 13 The linear conveying system 1C according to Embodiment 4 will be described. Figure 13 This is a cross-sectional view showing the movable part 3, the first position detection unit 7, and the second position detection unit 14 of the linear conveying system 1C according to Embodiment 4. In this embodiment, the difference from Embodiment 1 is that the magnet mounting part 13a and the guide roller mounting parts 13b and 13c are separate. Furthermore, in Embodiment 4, parts that are repeated in Embodiment 1 are labeled with the same reference numerals and their descriptions are omitted. Figure 13 In the diagram, the first position detection unit 7 is illustrated with a dashed line, and the cross-sectional shading of some components is omitted.

[0106] The magnet mounting part 13a, the guide roller mounting part 13b, and the guide roller mounting part 13c are each formed separately. A second position detection part 14 is provided on the first movable side 13d of the magnet mounting part 13a. Two through holes 13h and 13i are formed in the magnet mounting part 13a. The two through holes 13h and 13i are arranged at intervals between each other in the Y-axis direction.

[0107] The through hole 13h includes an opening on the second movable member side 13e of the magnet mounting portion 13a, an elongated hole 13j whose length in the Y-axis direction is longer than its length in the X-axis direction, and an insertion hole 13k that extends from the bottom surface of the elongated hole 13j to the first movable member side 13d of the magnet mounting portion 13a. The head of a fixing screw 20 is disposed in the elongated hole 13j. The fixing screw 20 is inserted into the insertion hole 13k.

[0108] The through hole 13i includes an opening on the second movable member side surface 13e of the magnet mounting portion 13a, an elongated hole 13m whose length in the Y-axis direction is longer than its length in the X-axis direction, and an insertion hole 13n that extends from the bottom surface of the elongated hole 13m to the first movable member side surface 13d of the magnet mounting portion 13a. The head of a fixing screw 21 is disposed in the elongated hole 13m. The fixing screw 21 is inserted into the insertion hole 13n.

[0109] A threaded hole 13o is formed in one guide roller mounting portion 13b, which communicates with the insertion hole 13k. A fixing screw 20 is inserted into the threaded hole 13o. A threaded hole 13p is formed in another guide roller mounting portion 13c, which communicates with the insertion hole 13n. A fixing screw 21 is inserted into the threaded hole 13p. In the movable member 3 of this embodiment, the first adjustment mechanism 18 is constituted by the magnet mounting portion 13a, the guide roller mounting portions 13b and 13c, the through holes 13h and 13i, the threaded holes 13o and 13p, and the fixing screws 20 and 21. The first adjustment mechanism 18 causes the second position detection portion 14 to move in the direction in which the first gap 11 narrows and in the direction in which the first gap 11 widens.

[0110] Next, the effects of the linear conveying system 1C according to this embodiment will be explained.

[0111] Loosen the fixing screws 20 inserted into the insertion hole 13k of the magnet mounting part 13a and the screw hole 13o of the guide roller mounting part 13b, and pull the fixing screws 20 out of the screw hole 13o of the guide roller mounting part 13b. Similarly, loosen the fixing screws 21 inserted into the insertion hole 13n of the magnet mounting part 13a and the screw hole 13p of the guide roller mounting part 13c, and pull the fixing screws 21 out of the screw hole 13p of the guide roller mounting part 13c. Furthermore, the fixing screws 20 and 21 do not necessarily need to be pulled out of the screw holes 13o and 13p; loosening the fixing screws 20 and 21 allows the magnet mounting part 13a to move relative to the guide roller mounting part 13b and the guide roller mounting part 13c. If configured as described above, the position of the magnet mounting portion 13a relative to the guide roller mounting portions 13b and 13c in the Y-axis direction can be changed, causing the second position detection portion 14 provided in the magnet mounting portion 13a to move in the direction of narrowing the first gap 11 or widening the first gap 11.

[0112] Furthermore, by pressing the gap adjustment component 19 (not shown) against the first position detection unit 7 via the second position detection unit 14, after determining the position of the second position detection unit 14 in the Y-axis direction, the fixing screw 20 is inserted into the insertion hole 13k of the magnet mounting part 13a and the screw hole 13o of the guide roller mounting part 13b, and the fixing screw 21 is inserted into the insertion hole 13n of the magnet mounting part 13a and the screw hole 13p of the guide roller mounting part 13c. Thus, the position of the second position detection unit 14 in the Y-axis direction can be fixed. Furthermore, in Figure 13 In the original design, the length of the insertion hole 13k in the Y-axis direction is the same as the diameter of the fixing screw 20, but in reality, the length of the insertion hole 13k in the Y-axis direction is greater than the diameter of the fixing screw 20. Additionally, in... Figure 13 In the original design, the length of the insertion hole 13n in the Y-axis direction is the same as the diameter of the fixing screw 21, but in reality, the length of the insertion hole 13n in the Y-axis direction is greater than the diameter of the fixing screw 21. If this is done, after adjusting the position of the second position detection unit 14 in the Y-axis direction, the fixing screw 20 can be reliably inserted into the insertion hole 13k and the screw hole 13o, and the fixing screw 21 can be reliably inserted into the insertion hole 13n and the screw hole 13p, thereby fixing the position of the second position detection unit 14 in the Y-axis direction.

[0113] In this embodiment, the first adjustment mechanism 18 has a fixing screw 20 that can be detached from the magnet mounting portion 13a and the guide roller mounting portion 13b, and a fixing screw 21 that can be detached from the magnet mounting portion 13a and the guide roller mounting portion 13c. The position of the fixing screw 20 can be changed to a fixed position that immovably fixes the magnet mounting portion 13a to the guide roller mounting portion 13b, and to a released position that allows movement of the magnet mounting portion 13a relative to the guide roller mounting portion 13b. Similarly, the position of the fixing screw 21 can be changed to a fixed position that immovably fixes the magnet mounting portion 13a to the guide roller mounting portion 13c, and to a released position that allows movement of the magnet mounting portion 13a relative to the guide roller mounting portion 13c. With these structures, as the magnet mounting portion 13a moves relative to the guide roller mounting portion 13c, the position of the second position detection portion 14 in the Y-axis direction, i.e., its position in the detection portion gap direction G1, can be easily adjusted. The gap adjustment member 19 can be easily pressed against the first position detection portion 7 by the second position detection portion 14. Furthermore, in this embodiment, the second position detection portion 14 is mounted on the magnet mounting portion 13a, but it can also be mounted on a component other than the magnet mounting portion 13a. That is, the second position detection portion 14 can be mounted on any component that can be moved to allow adjustment of its position in the detection portion gap direction G1.

[0114] Implementation method 5.

[0115] Next, refer to Figure 14 The linear conveying system 1D according to Embodiment 5 will be described. Figure 14 This is a cross-sectional view showing the linear conveying system 1D according to Embodiment 5. In this embodiment, the difference from Embodiment 1 is that the first position detection unit 7 and the first positioning unit 10 are in direct contact. Furthermore, in Embodiment 5, parts that are repeated in Embodiment 1 are labeled with the same reference numerals and their descriptions are omitted.

[0116] The first position detection unit 7 is directly mounted on the base 5. The first position detection unit 7 is separated from the stator 6 and disposed below the stator 6. The first position detection unit 7 has a first side surface 7a facing the movable member 3 and a second side surface 7b facing the opposite side to the movable member 3. The second side surface 7b contacts the base side surface 5e. A portion of the surface of the first position detection unit 7 facing the second position detection unit 14 contacts the first positioning part 10. Hereinafter, in this embodiment, the surface of the first position detection unit 7 facing the second position detection unit 14 is sometimes referred to as the lower surface. In this embodiment, the surface of the first position detection unit 7 opposite to the lower surface is sometimes referred to as the upper surface. The lower surface of the first position detection unit 7, near the boundary with the second side surface 7b, contacts the first positioning part 10. When the first position detection unit 7 is in contact with the first positioning unit 10, a space 12 is provided on the opposite side of the second position detection unit 14, across the first position detection unit 7, to allow movement of the first position detection unit 7 in the direction of widening towards the first gap 11. The space 12 is formed between the upper surface of the first position detection unit 7 and the lower surface of the stator 6.

[0117] Next, the manufacturing method of the linear conveying system 1D according to this embodiment will be described. The manufacturing method of the linear conveying system 1D includes a first positioning step, a temporary fixing step, a second positioning step, a first fixing step, a moving step, a taking out step, a third positioning step, and a second fixing step.

[0118] The first positioning step involves bringing the first position detection unit 7 into contact with the first positioning unit 10 to restrict the movement of the first position detection unit 7 in the direction of narrowing towards the first gap 11, thereby positioning the first position detection unit 7 in the detection gap direction G1. In this first positioning step, a portion of the lower surface of the first position detection unit 7 comes into contact with the step of the first positioning unit 10. In this first positioning step, the position of the first position detection unit 7 in the detection gap direction G1 is determined.

[0119] The temporary fixing process is the process of fixing the first position detection unit 7 to the base 5. In the temporary fixing process, the first position detection unit 7 is fixed to the base 5 by fixing screws (not shown). The temporary fixing process can be omitted, but by fixing the first position detection unit 7 to the base 5 through the temporary fixing process, the possibility of the first position detection unit 7 deviating from the position determined by the first positioning process can be eliminated in each process of manufacturing the linear conveying system 1D, which includes the second positioning process described later, so that each process can be carried out smoothly.

[0120] The second positioning step is the same as the second positioning step in Embodiment 1 described above. Furthermore, the first fixing step is the same as the first fixing step in Embodiment 1 described above.

[0121] The moving process involves moving the first position detection unit 7 in the direction that widens the first gap 11. During this moving process, a fixing screw (not shown) is loosened, and after the first position detection unit 7 is positioned so that it can move relative to the base 5, it is moved in the direction that widens the first gap 11. As a result, the width of the first gap 11 increases compared to the thickness of the gap adjustment member 19, thus making it easier to remove the gap adjustment member 19 from the first gap 11.

[0122] The removal process is the process of removing the gap adjustment component 19 from the first gap 11. In the removal process, the gap adjustment component 19 is moved in the X-axis direction, which is perpendicular to the gap direction G1 of the detection section, and removed from the first gap 11.

[0123] The third positioning step involves bringing the first position detection unit 7 into contact with the first positioning unit 10 to restrict the movement of the first position detection unit 7 in the direction of narrowing towards the first gap 11, thereby positioning the first position detection unit 7 in the detection gap direction G1. In this third positioning step, a portion of the lower surface of the first position detection unit 7 comes into contact with the step of the first positioning unit 10. In this third positioning step, the position of the first position detection unit 7 in the detection gap direction G1 is determined.

[0124] The second fixing process is the process of fixing the first position detection unit 7 to the base 5. In the second fixing process, the first position detection unit 7 is fixed to the base 5 using fixing screws (not shown). Next, in the second fixing process, the stator 6 is fixed to the base 5 using fixing screws (not shown). By performing the above processes, assembly and manufacturing are possible. Figure 14 The linear conveying system 1D is shown. Furthermore, in order to move the first position detection unit 7 in the direction that widens the first gap 11, it is preferable that the stator 6 is not positioned between the base 5 and the movable member 3 until the second fixing process is performed. However, if... Figure 14As shown, a space 12 is provided between the first position detection unit 7 and the stator 6, and the first position detection unit 7 can be moved in the direction of widening the first gap 11, so there is no particular limitation on the timing of fixing the stator 6 to the base 5.

[0125] Next, the effects of the linear conveying system 1D involved in this embodiment will be explained.

[0126] In this embodiment, the first position detection unit 7 is disposed on the base 5 and is in direct contact with the first positioning unit 10, thereby being unaffected by the tolerances of the multiple stators 6 and being able to position the first position detection unit 7 with high precision relative to the first positioning unit 10.

[0127] Implementation method 6.

[0128] Next, refer to Figure 15 The linear conveying system 1E according to Embodiment 6 will be described. Figure 15 This is a perspective view showing the movable member 3 of the linear conveying system 1E according to Embodiment 6. In this embodiment, the difference from Embodiment 1 is that the conveying direction positioning part 22 is provided on the movable member 3. Furthermore, in Embodiment 6, parts that are repeated with those in Embodiment 1 are labeled with the same reference numerals and their descriptions are omitted.

[0129] A conveying direction positioning part 22 is provided on the movable member 3 to restrict the movement of the second position detection part 14 in the conveying direction of the movable member 3. The conveying direction positioning part 22 is provided on the first movable member side surface 13d of the magnet mounting part 13a. In this embodiment, the conveying direction positioning part 22 is a protrusion that protrudes in the Z-axis direction from the first movable member side surface 13d of the magnet mounting part 13a toward the stator 6 (not shown). The conveying direction positioning part 22 extends in the Y-axis direction. The conveying direction positioning part 22 is located in front of the second position detection part 14 and the motor magnet 3a in the conveying direction. The conveying direction positioning part 22 is in contact with the front side surface of the second position detection part 14 in the conveying direction and the front side surface of the motor magnet 3a in the conveying direction.

[0130] Next, the effects of the linear conveying system 1E according to this embodiment will be explained.

[0131] In this embodiment, a conveying direction positioning part 22 is provided in the movable member 3 to restrict the movement of the second position detection part 14 in the conveying direction of the movable member 3, thereby determining the position of the second position detection part 14 in the conveying direction. As a result, when replacing the second position detection part 14 or readjusting its position, it is possible to prevent the second position detection part 14 from shifting in the conveying direction.

[0132] The conveying direction positioning part 22 is not particularly limited if it is a structure that can restrict the movement of the second position detection part 14 in the conveying direction toward the movable member 3. The conveying direction positioning part 22 can be, for example, a pin mounted on the movable member 3 and protruding from the movable member 3 toward the stator 6. The pin is formed separately from the movable member 3. The pin protrudes toward the stator 6 compared to the side surface 13d of the first movable member. When the conveying direction positioning part 22 is a pin, it is preferable that at least two pins are arranged in the Y-axis direction. Alternatively, the conveying direction positioning part 22 can be, for example, constituted by a protrusion or pin protruding from the second position detection part 14 toward the movable member 3 and a hole provided on the movable member 3 for the protrusion or pin of the second position detection part 14 to engage. The shape of the protrusion is not particularly limited. The shape of the protrusion can be, for example, cylindrical or a square prism that is longer in the Y-axis direction than in the X-axis direction. The shape of the hole is appropriately modified to match the shape of the protrusion or pin. In this embodiment, the conveying direction positioning unit 22 is in direct contact with the second position detection unit 14, but it can also be indirectly contacted with the second position detection unit 14 via other components.

[0133] Implementation method 7.

[0134] Next, refer to Figure 16 and Figure 17 The linear conveying system 1F according to Embodiment 7 will be described. Figure 16 This is a perspective view of the movable part 3 of the linear conveying system 1F according to embodiment 7. Figure 17 This is a perspective view showing the movable member 3 of the linear conveying system 1F according to embodiment 7, from the perspective of... Figure 16 The diagram shows the view from the opposite side. In this embodiment, the difference from Embodiment 1 is that the second positioning part 23 and the second adjustment mechanism 24 are provided on the movable member 3. Furthermore, in Embodiment 7, parts that are repeated with those in Embodiment 1 are labeled with the same reference numerals and their descriptions are omitted.

[0135] A second positioning part 23 is provided on the movable member 3. The second positioning part 23 is provided on the first movable member side surface 13d of the magnet mounting part 13a. The second positioning part 23 restricts the movement of the second position detection part 14 in the direction of narrowing of the first gap 11 (not shown), and allows the movement of the second position detection part 14 in the direction of widening of the first gap 11. The second positioning part 23 is formed separately from the movable member 3. In this embodiment, the second positioning part 23 is mounted on the first movable member side surface 13d of the movable member 3 and protrudes from the first movable member side surface 13d toward the stator 6 (not shown).

[0136] The second positioning part 23 extends in the X-axis direction. In this embodiment, the shape of the second positioning part 23 is a rectangular prism that is longer in the X-axis direction than in the Y-axis direction, but this can be appropriately modified. The second positioning part 23 is positioned above the second position detection part 14. The lower surface of the second positioning part 23 contacts a portion of the upper surface of the second position detection part 14. When viewed along the Y-axis direction, the position of the second positioning part 23 is such that it does not overlap with the first position detection part 7, so as not to obstruct the detection of the position of the movable member 3 performed by the first position detection part 7 (not shown) and the second position detection part 14.

[0137] The movable member 3 is provided with a second adjustment mechanism 24 capable of adjusting the position of the second positioning part 23 in the Y-axis direction, that is, in the detection gap direction G1 of the second positioning part 23. In this embodiment, the movable member 3 is configured with an elongated hole 18a and a fixing screw 24a. Figure 16 As shown, a screw hole 23a communicating with the elongated hole 18a is formed in the second positioning part 23. A fixing screw 24a is inserted into the elongated hole 18a and the screw hole 23a. The fixing screw 24a inserted into the elongated hole 18a is screwed into the screw hole 23a, thereby fixing the second positioning part 23 to the movable member 3. Figure 17 As shown, the elongated hole 18a also serves as the first adjustment mechanism 18. The length of the elongated hole 18a in the Y-axis direction is greater than the diameter of the fixing screw 24a. This structure allows the fixing screw 24a, inserted into the elongated hole 18a, to move in the Y-axis direction. When adjusting the position of the second positioning part 23 in the Y-axis direction, the fixing screw 24a inserted into the elongated hole 18a is changed in the Y-axis direction to screw the fixing screw 24a into the screw hole 23a.

[0138] Next, the effects of the linear conveying system 1F according to this embodiment will be explained.

[0139] In this embodiment, the movable member 3 is provided with a second positioning part 23 that restricts the movement of the second position detection part 14 in the direction of narrowing of the first gap 11, and allows the movement of the second position detection part 14 in the direction of widening of the first gap 11. Furthermore, in this embodiment, the movable member 3 is provided with a second adjustment mechanism 24 capable of adjusting the position of the second positioning part 23 in the detection gap direction G1. With these structures, after fixing the second position detection part 14 to the movable member 3 by determining its position in the detection gap direction G1, the second positioning part 23 can be positioned at a position that restricts the movement of the second position detection part 14 in the direction of narrowing of the first gap 11. Therefore, when replacing the second position detection part 14, the second positioning part 23 determines the position of the new second position detection part 14 in the detection gap direction G1, thus eliminating the need to adjust the first gap 11 when replacing the second position detection part 14.

[0140] The second positioning part 23 is not particularly limited if it is configured to restrict the movement of the second position detection part 14 in the direction of narrowing of the first gap 11, and allow the movement of the second position detection part 14 in the direction of widening of the first gap 11. The second positioning part 23 may, for example, be a pin mounted on the movable member 3 and protruding from the movable member 3 toward the stator 6. The pin is formed separately from the movable member 3. The pin protrudes toward the stator 6 compared to the side surface 13d of the first movable member. When the second positioning part 23 is a pin, it is preferable that at least two pins are arranged in the X-axis direction. Alternatively, for example, the second positioning part 23 may be configured to be mounted on the movable member 3 by a protrusion or pin protruding from the second positioning part 23 toward the movable member 3 and a hole provided in the movable member 3 for the protrusion or pin of the second positioning part 23 to engage. The shape of the protrusion is not particularly limited. The shape of the protrusion can be, for example, cylindrical, or a square prism that is longer in the X-axis direction than in the Y-axis direction. The shape of the hole is appropriately modified to match the shape of the protrusion or pin. In this embodiment, the second positioning part 23 is in direct contact with the second position detection part 14, but it can also be indirectly contacted with the second position detection part 14 via other components.

[0141] Implementation method 8.

[0142] Next, refer to Figure 18 The linear conveying system 1G according to Embodiment 8 will be described. Figure 18 This is a cross-sectional view used to explain the manufacturing method of the linear conveying system 1G according to Embodiment 8. In this embodiment, the difference from Embodiment 1 is that the second position detection unit 14 is positioned using a fixture 25. Furthermore, in Embodiment 8, parts that are repeated with those in Embodiment 1 are labeled with the same reference numerals and their descriptions are omitted.

[0143] The manufacturing method of the linear conveying system 1G according to this embodiment includes a first positioning step, a temporary fixing step, a second positioning step, a first fixing step, a moving step, a taking out step, a third positioning step, and a second fixing step.

[0144] The first positioning process involves bringing the clamp 25, which corresponds to the shape of the stator 6, the first position detection unit 7, and the first gap 11, into contact with the first positioning unit 10. This restricts the movement of the clamp 25 in the direction that the gap narrows towards the first gap 11, thereby positioning the clamp 25 in the gap direction G1. Figure 18 In the diagram, the first gap 11 is illustrated using a dashed line. In the first positioning process, a portion of the lower surface of the clamp 25 contacts the step that serves as the first positioning part 10. In the first positioning process, the position of the clamp 25 in the gap direction G1 is determined. A space 12 is provided on the opposite side of the clamp 25 from the second position detection part 14, allowing movement of the clamp 25 in a direction that widens towards the first gap 11. The space 12 is formed between the upper surface of the clamp 25 and the lower surface of the guide rail mounting part 5d.

[0145] The temporary fixing process is the process of fixing the clamp 25 to the base 5. In the temporary fixing process, the clamp 25 is fixed to the base 5 by fixing screws (not shown). The temporary fixing process can be omitted, but by fixing the clamp 25 to the base 5 through the temporary fixing process, the possibility of the clamp 25 shifting from the position determined by the first positioning process can be eliminated in each process of manufacturing the linear conveyor system 1G, including the second positioning process described later, so that each process can be carried out smoothly.

[0146] The second positioning step involves bringing the second position detection unit 14 into contact with the fixture 25, thereby positioning the second position detection unit 14 in the detection gap direction G1. In this second positioning step, the second position detection unit 14 is moved toward the fixture 25 and pressed against it, thus determining the position of the second position detection unit 14 in the detection gap direction G1. The second position detection unit 14 presses against a portion of the lower surface of the fixture 25.

[0147] The first fixing step is a process in which the second position detection unit 14 is fixed to the movable member 3 while the second position detection unit 14 is in contact with the clamp 25. In the first fixing step, the second position detection unit 14 is fixed to the movable member 3 by the same method as the first fixing step of Embodiment 1.

[0148] The moving process involves moving the clamp 25 in the direction that widens the first gap 11. During this moving process, a fixing screw (not shown) is loosened, and after the clamp 25 is positioned so that it can move relative to the base 5, the clamp 25 is moved in the direction that widens the first gap 11. This causes the clamp 25 to separate from the second position detection unit 14, thus allowing it to be easily removed from between the base 5 and the movable member 3.

[0149] The removal process is the process of removing the fixture 25 from between the base 5 and the movable member 3. In the removal process, the fixture 25 is moved in the X-axis direction, which is perpendicular to the gap direction G1 of the detection section, and removed from between the base 5 and the movable member 3.

[0150] The third positioning process is the same as the third positioning process in Embodiment 1 described above. Furthermore, the second fixing process is the same as the second fixing process in Embodiment 1 described above. By performing the above processes, the linear conveying system 1G can be assembled and manufactured. Moreover, when the first position detection unit 7 and the first positioning unit 10 are in direct contact as in Embodiment 5 described above, the third positioning process is the same as the third positioning process in Embodiment 5 described above, and the second fixing process is the same as the second fixing process in Embodiment 5 described above.

[0151] Next, the effects of the linear transport system 1G involved in this embodiment will be explained.

[0152] In this embodiment, the second position detection unit 14 is positioned using a fixture 25, thereby enabling high-precision positioning of the second position detection unit 14 regardless of the tolerances of the multiple stators 6.

[0153] The structure shown in the above embodiments is an example, and it can also be combined with other known technologies, and the embodiments can be combined with each other. Without departing from the spirit of the subject, some parts of the structure can be omitted or changed.

[0154] Explanation of the label

[0155] 1. Linear conveying system (1A, 1B, 1C, 1D, 1E, 1F, 1G); 2. Track module; 3. Moving part; 3a. Motor magnet; 4. Conveyor line; 5. Base; 5a. Bottom; 5b. Holding part; 5c, 5d. Guide rail mounting part; 5e. Base side; 6. Stator; 6a. First stator side; 6b. Second stator side; 6c. Coil; 7. First position detection part; 7a. First side; 7b. Second side. 8, 9 guide rails, 10 first positioning part, 10a protrusion, 10b hole, 11 first gap, 12 space, 13 movable part body, 13a magnet mounting part, 13b, 13c guide roller mounting parts, 13d first movable part side surface, 13e second movable part side surface, 13f, 13g guide roller shafts, 13h, 13i, 18c through holes, 13j, 13m, 18a, 18j elongated holes, 13k 13n, 18k insertion holes; 13o, 13p, 14a, 18o, 18r, 18s, 18w, 23a screw holes; 14 second position detection part; 15, 16 guide rollers; 17 second gap; 18 first adjustment mechanism; 18b, 20, 21, 24a fixing screws; 18d receiving part; 18e first wedge part; 18f second wedge part; 18g first fixing screw; 18h adjusting screw; 18i, 18y second fixing screws; 18m bottom wall; 18n side wall; 18p bottom surface; 18q first inclined surface; 18t mounting surface; 18u mounting surface; 18v second inclined surface; 18x force application part; 19 gap adjustment part; 22 conveying direction positioning part; 23 second positioning part; 24 second adjustment mechanism; 25 clamp; G1 detection part gap direction; G2 coil gap direction.

Claims

1. A linear conveying system, characterized in that, have: The base of the conveying path module constitutes the conveying path; Movable component, which moves along the conveying path; The stator, which is mounted on the base and together with the movable element, constitutes a linear motor; A first position detection unit is disposed on either the base or the stator; as well as A second position detection unit is disposed on the movable member, and together with the first position detection unit, detects the position of the movable member. The first position detection unit and the second position detection unit are arranged with a first gap separating them in the first direction. The base is provided with a first positioning part that restricts the movement of the first position detection part in the direction of narrowing of the first gap, and allows the movement of the first position detection part in the direction of widening of the first gap. The movable member is provided with a first adjustment mechanism capable of adjusting the position of the second position detection unit in the first direction.

2. The linear conveying system according to claim 1, characterized in that, The stator has coils. The movable member has a permanent magnet arranged in a second direction, separated from the coil by a second gap. The second direction is a direction perpendicular to the first direction.

3. The linear conveying system according to claim 1, characterized in that, The movable member is provided with a conveying direction positioning part that restricts the movement of the second position detection part in the conveying direction of the movable member.

4. The linear conveying system according to any one of claims 1 to 3, characterized in that, The movable member is provided with a second positioning part that restricts the movement of the second position detection part in the direction of narrowing the first gap and allows the movement of the second position detection part in the direction of widening the first gap.

5. A method for manufacturing a linear conveying system, the linear conveying system comprising: a base of a conveying path module constituting a conveying path; a movable member that moves along the conveying path; a stator disposed on the base and together with the movable member constituting a linear motor; and a first position detection unit disposed on either the base or the stator. A second position detection unit is provided on the movable member and, together with the first position detection unit, detects the position of the movable member. The first and second position detection units are arranged apart by a first gap in a first direction. A first positioning unit is provided on the base to restrict the movement of the first position detection unit in the direction that narrows the first gap and to allow the movement of the first position detection unit in the direction that widens the first gap. A first adjustment mechanism is provided on the movable member to adjust the position of the second position detection unit in the first direction. The manufacturing method of a linear conveyor system is characterized by including: In the first positioning process, the stator or the first position detection unit comes into contact with the first positioning unit, and the movement of the first position detection unit in the direction of narrowing of the first gap is restricted, thereby positioning the first position detection unit in the first direction. In the second positioning process, the first position detection unit is positioned in the first direction by clamping the first position detection unit and the second position detection unit with a gap adjustment component. In the first fixing step, the second position detection unit is fixed to the movable member while the gap adjustment component is clamped between the first position detection unit and the second position detection unit; In the moving process, the first position detection unit is moved in the direction in which the first gap widens; as well as In the removal process, the gap adjustment component is removed from the first gap.

6. A method for manufacturing a linear conveying system, the linear conveying system comprising: a base of a conveying path module constituting a conveying path; a movable member that moves along the conveying path; a stator disposed on the base and together with the movable member constituting a linear motor; and a first position detection unit disposed on either the base or the stator. A second position detection unit is provided on the movable member and, together with the first position detection unit, detects the position of the movable member. The first and second position detection units are arranged apart by a first gap in a first direction. A first positioning unit is provided on the base to restrict the movement of the first position detection unit in the direction that narrows the first gap and to allow the movement of the first position detection unit in the direction that widens the first gap. A first adjustment mechanism is provided on the movable member to adjust the position of the second position detection unit in the first direction. The manufacturing method of this linear conveying system is characterized by comprising: In the first positioning process, a clamp corresponding to the shape of the stator, the first position detection unit, and the first gap is brought into contact with the first positioning unit, and the movement of the clamp in the direction of narrowing of the first gap is restricted, thereby positioning the clamp in the first direction. In the first fixing step, the second position detection part is fixed to the movable part while the second position detection part is in contact with the fixture; In the moving process, the fixture is moved in the direction in which the first gap widens; as well as The removal process involves taking the clamp out from between the base and the movable member.

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