Magnetic scale attachment jig with magnetic detection function
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Utility models
- Current Assignee / Owner
- HIWIN MIKROSYST
- Filing Date
- 2026-06-03
- Publication Date
- 2026-08-03
Smart Images
Figure 0003256899000001_ABST
Abstract
Description
Technical Field
[0004] , , , , , , , ,
[0003]
[0001] The present invention relates to a jig for attaching a magnetic scale, and more particularly to a jig for attaching a magnetic scale having a magnetic detection function.
Background Art
[0002] Magnetic scales are widely used in devices having a platform, a slide table, or other reciprocating movement mechanisms. Usually, a magnetic scale is provided by being attached to the surface of a platform or a slide table, and further, by reading a magnetic field with an encoder, it is used as a basis for displacement amount or stroke control feedback of the device. At the time of actual installation, usually, a jig is used as an aid, and while gradually peeling off the release paper on the lower surface of the magnetic scale having an adhesive, the magnetic scale is smoothly attached to the surface of the platform or the slide table, thereby improving the convenience and quality of the attachment work.
[0003] However, existing general jigs for attaching magnetic scales often have only the single function of attaching magnetic scales and do not have means for detecting or analyzing the magnetic poles of magnetic scales. Therefore, after the user completes the attachment of the magnetic scale, if there are local damages or abnormalities in the magnetic poles of the magnetic scale during the process of the platform of the device moving over the full stroke, there is a possibility that reading errors or feedback abnormalities may occur when the encoder reads the magnetic field, and as a result, it may affect the positioning accuracy and operation stability of the device. In this case, it is necessary to further use a magnetic field detection element to inspect whether there are situations such as breakage, abnormality, or poor arrangement in the magnetic poles of the magnetic scale. Therefore, in order to improve the above problems and enhance the convenience in use, it is desired to propose a jig having both a magnetic scale attachment function and a magnetic detection function.
Summary of the Invention
Problems to be Solved by the Invention
[0004] In view of this, the present invention aims to provide an adhesive jig that improves the convenience of use of the adhesive jig by providing a magnetic field sensor inside the adhesive jig, which allows the magnetic field sensor to check whether or not there is an abnormal condition in the magnetic poles of the magnetic scale during the process of assisting in the attachment of the magnetic scale. [Means for solving the problem]
[0005] To achieve the above objective, the magnetic scale attachment jig having a magnetic detection function according to the present invention comprises a jig body having a first contact portion and a second contact portion provided on opposite sides and spaced apart from each other, and a magnetic field sensor coupled to the jig body for sensing the magnetic field of the magnetic scale passing through the first contact portion and the second contact portion.
[0006] According to this invention, when using this invention to assist in attaching a magnetic scale, the magnetic field sensor can sense the magnetic field of the magnetic scale passing through the jig body. This allows the user to determine whether the magnetic scale passing through the jig body has appropriately positioned magnetic poles, or to understand the change in magnetic poles as the magnetic scale moves relative to the jig body. Therefore, it is possible to inspect whether or not there is an abnormal condition in the magnetic poles of the magnetic scale, thereby improving the usability of the magnetic scale attachment jig having a magnetic detection function. [Brief explanation of the drawing]
[0007] [Figure 1] This is a perspective view showing a first preferred embodiment of the present invention. [Figure 2] This is a perspective view showing a first preferred embodiment of the present invention from a different angle. [Figure 3] Figure 2 is an exploded view. [Figure 4] This is a plan view showing a first preferred embodiment of the present invention. [Figure 5] This is a cross-sectional view along line 5-5 in Figure 4. [Figure 6]This is a schematic perspective view showing how the first preferred embodiment of the present invention is used for attaching a magnetic scale. [Figure 7] This is a schematic side view showing how the first preferred embodiment of the present invention is used for attaching a magnetic scale. [Figure 8] This is a schematic plan view showing how the first preferred embodiment of the present invention is used for attaching a magnetic scale. [Figure 9] This is a perspective view showing a second preferred embodiment of the present invention. [Figure 10] This is a perspective view showing a second preferred embodiment of the present invention from a different angle. [Figure 11] Figure 10 is an exploded view. [Figure 12] This is a plan view showing a second preferred embodiment of the present invention. [Figure 13] This is a cross-sectional view along line 13-13 in Figure 12. [Figure 14] This is a schematic perspective view showing a second preferred embodiment of the present invention, which includes an encoder and is used for attaching a magnetic scale. [Figure 15] This is a schematic side view showing a second preferred embodiment of the present invention, which includes an encoder and is used for attaching a magnetic scale. [Figure 16] This is a schematic plan view showing a second preferred embodiment of the present invention, which includes an encoder and is used for attaching a magnetic scale. [Figure 17] This is a perspective view showing a third preferred embodiment of the present invention. [Figure 18] This is a perspective view showing a third preferred embodiment of the present invention from a different angle. [Figure 19] This is a side view showing a third preferred embodiment of the present invention from a different angle. [Modes for carrying out the invention]
[0008] To explain the present invention more clearly, preferred embodiments will be given below and described in detail with reference to the drawings. As shown in Figures 1 to 5, the magnetic scale attachment jig 100 having a magnetic detection function according to the first preferred embodiment of the present invention comprises a jig body 10 and a magnetic field sensor 20. The jig body 10 includes a side plate 12, a contact structure 14 and a guide structure 16. The side plate 12 is a rectangular long plate, and the direction in which the two long sides of the side plate 12 extend is defined as the direction of movement L. The two short sides of the side plate 12 correspond to both sides of the direction of movement L, and the two long sides of the side plate 12 are defined as the base 121 and the top 122, respectively.
[0009] The contact structure 14 is connected to the side plate 12 and includes a first block body 141 and a second block body 142. The first block body 141 is connected to one side of the side plate 12 corresponding to the direction of movement L and at a position close to the base 121. A first contact portion 1411 is formed on the surface of the first block body 141 facing the base 121. The first contact portion 1411 is an arc-shaped surface and is provided at a position close to the base 121.
[0010] The second block body 142 is joined to the side of the side plate 12 on the opposite side corresponding to the direction of movement L, and at a position close to the top edge 122. A second contact portion 1421, which is an inclined surface, is formed on the surface of the second block body 142 facing the bottom edge 121. The first contact portion 1411 and the second contact portion 1421 are positioned spaced apart on both sides of the side plate 12 along the direction of movement L, and the first contact portion 1411 and the second contact portion 1421 each face the bottom edge 121. Mounting holes 143 that penetrate the side plate 12 are formed on the surface of the first block body 141 opposite to the side plate 12, and on the surface of the second block body 142 opposite to the side plate 12. An observation window 144 that opens upward is formed between the first block body 141 and the second block body 142.
[0011] The guiding structure 16 includes a shaft rod 161 and a roller 162. One end of the shaft rod 161 is fixed at a position on the other side of the side plate 12 corresponding to the moving direction L and close to the bottom edge 121. The roller 162 is externally fitted to the shaft rod 161 rotatably. The direction in which the guiding structure 16 and the second abutting portion 1421 are arranged is orthogonal to the moving direction L, and an insertion port A is formed between the second abutting portion 1421 and the guiding structure 16.
[0012] The magnetic field sensor 20 is coupled to the jig body 10, and at least a part thereof is located between the first abutting portion 1411 and the second abutting portion 1421. The magnetic field sensor 20 is for sensing the magnetic field of the magnetic scale 30 that passes through the insertion port A and passes below the first abutting portion 1411 and below the second abutting portion 1421.
[0013] In this preferred embodiment, the magnetic field sensor 20 is a long magnetic viewing film, and is inclined with respect to the bottom edge 121 and the moving direction L. One of the two ends of the magnetic field sensor 20 is coupled to the surface of the first block body 141 on the side opposite to the second block body 142 by screwing, and the other of the two ends of the magnetic field sensor 20 is coupled to the surface of the second block body 142 on the side opposite to the first block body 141 by screwing. Thereby, the two ends of the magnetic field sensor 20 are respectively fixed to the first block body 141 and the second block body 142, and the two side portions of the magnetic field sensor 20 respectively abut against the first abutting portion 1411 and the second abutting portion 1421, and the central portion of the magnetic field sensor 20 is exposed to the outside from the observation window 144. In other preferred embodiments, the two ends of the magnetic field sensor 20 may be fixed to the first block body 141 and the second block body 142 respectively by bonding means.
[0014] As shown in FIGS. 5 to 9, when using the magnetic scale attachment jig 100 having the magnetic detection function according to the above first preferred embodiment of the present invention, the magnetic scale 30 is attached to the platform 40 of the equipment and used. For example, the magnetic scale 30 corresponding to an encoder with a width of 12 to 16 mm is attached and used on the platform 40 of the equipment. During operation, the two mounting holes 143 of the jig body 10 are used instead of the mounting holes of the encoder, and the jig body 10 is coupled to the bracket of the equipment instead of the encoder. Then, the release paper 32 adhered to the lower surface of one end of the magnetic scale 30 is peeled off, and the magnetic scale 30 with the adhesive exposed is passed through the insertion port A, passed under the first contact portion 1411 and under the second contact portion 1421, and drawn out from between the first contact portion 1411 and the bottom edge 121. Then, one end of the magnetic scale 30 with the adhesive exposed is adhered to the surface of the platform 40, and further, the release paper 32 peeled off from the lower surface of the magnetic scale 30 as described above is extended outward via the bottom surface of the roller 162. Thereafter, in the process of the platform 40 moving, due to the rotatable configuration of the roller 162, the user can sequentially peel off the release paper 32 adhered to the lower surface of the magnetic scale 30.
[0015] In the process of the jig body 10 moving relative to the platform 40, the first contact portion 1411 presses a part of the magnetic scale 30 passing under it, and adheres the corresponding part of the magnetic scale 30 to the surface of the platform 40. In the process of attaching the magnetic scale 30, the magnetic field observation sheet as the above-mentioned magnetic field sensor 20 is a soft long strip containing liquid magnetic powder and can detect the shape, direction and number of magnetic poles (N / S poles) of the magnetic field. Therefore, in the process of the magnetic scale 30 having a plurality of magnetic poles passing under the magnetic field sensor 20 in an inclined state with respect to the bottom edge 121, the user can visually recognize the magnetic field sensor 20 from the observation window 144, and by observing the light and dark or color changes appearing in the magnetic powder of the magnetic field sensor 20, the user can grasp the number of magnetic poles of the magnetic scale 30 and the shape of each magnetic pole, and can judge whether there is damage to the magnetic pole where the magnetic scale 30 passes under the magnetic field sensor 20.
[0016] Preferably, the magnetic field sensor 20 located below the observation window 144 has a length of at least twice the distance N between each magnetic pole of the magnetic scale 30, for example, 25 to 32 mm. This allows the user to simultaneously observe the change in brightness or color as the two magnetic poles of the magnetic scale 30 move relative to each other when viewing the magnetic field sensor 20 through the observation window 144, making it easier to determine whether or not there is damage to the magnetic poles of the magnetic scale 30 as it passes below the magnetic field sensor 20. In other preferred embodiments, instead of a magnetic field observation sheet, a magnetic field sensor capable of sensing the presence or change of a magnetic field, such as a Hall element, may be used to detect the magnetic scale 30 as it passes through the jig body 10. This allows for inspection of whether or not there is damage to the magnetic poles of the magnetic scale 30 at the same time as attaching the magnetic scale 30, improving the convenience of using the jig.
[0017] As shown in Figures 9 to 13, the magnetic scale attachment jig 100A having a magnetic detection function according to the second preferred embodiment of the present invention comprises a jig body 10A and a magnetic field sensor 20A. The jig body 10A includes a side plate 12A, a contact structure 14A, and a guide structure 16A. The side plate 12A is a rectangular long plate, and the direction in which the two long sides of the side plate 12A extend is defined as the direction of movement L. The two short sides of the side plate 12A correspond to both sides of the direction of movement L, and the two long sides of the side plate 12A are defined as the base 121A and the top 122A, respectively. A first dovetail groove 123A is formed on the side plate 12A at a position corresponding to one side of the direction of movement L, extending in a direction perpendicular to the direction of movement L. A second dovetail groove 124A is formed on the side plate 12A at a position corresponding to the other side of the direction of movement L, extending in a direction perpendicular to the direction of movement L.
[0018] The contact structure 14A is connected to the side plate 12A and includes a first block body 141A, a second block body 142A, and a connecting arm 145A. Corresponding to the first dovetail groove 123A, a first dovetail tenon 1412A is formed in the first block body 141A, and the first dovetail tenon 1412A is fitted into the first dovetail groove 123A by interlocking. As a result, the first block body 141A is connected to one side of the side plate 12A corresponding to the direction of movement L, and at a position close to the base 121A. A first contact portion 1411A is formed on the surface of the first block body 141A facing the base 121A. The first contact portion 1411A has an arc-shaped surface and is provided at a position close to the base 121A.
[0019] The second block body 142A is joined to the side plate 12A on the opposite side corresponding to the direction of movement L, and at a position close to the top edge 122A. A second contact portion 1421A, which is an inclined surface, is formed on the surface of the second block body 142A facing the bottom edge 121A. The first contact portion 1411A and the second contact portion 1421A are located on both sides of the side plate 12A with a gap between them along the direction of movement L, and the first contact portion 1411A and the second contact portion 1421A each face the bottom edge 121A.
[0020] Corresponding to the second dovetail groove 124A, a second dovetail tenon 163A is formed in the guide structure 16A, and the second dovetail tenon 163A is fitted into the second dovetail groove 124A by interlocking. As a result, the guide structure 16A is connected to the other side of the side plate 12A corresponding to the direction of movement L, and to a position close to the bottom edge 121A. The direction in which the guide structure 16A and the second contact portion 1421A are arranged is perpendicular to the direction of movement L. The guide structure 16A is a block body, and a guide inclined surface 164A is formed on the surface facing the second block body 142A, which is approximately parallel to the second contact portion 1421A. An insertion opening A is formed between the second contact portion 1421A and the guide structure 16A. A guide arc surface 165A is formed on the side of the guide structure 16A opposite to the second block body 142A, and one side of the guide arc surface 165A facing the first block body 141A is connected to the guide inclined surface 164A.
[0021] The connecting arm 145A includes a base 1451A and a connecting handle 1452A. Corresponding to the first dovetail groove 123A, the base 1451A is connected to one side of the side plate 12A corresponding to the direction of movement L, and at a position close to the top edge 122A. The first block body 141A and the base 1451A are spaced apart, and their arrangement direction is perpendicular to the direction of movement L. The connecting handle 1452A is connected to the base 1451A and protrudes from the side plate 12A along the direction of movement L. The connecting handle 1452A is provided with two bolt insertion holes 1453A. An observation window 144A that opens upward is formed between the second block body 142A and the base 1451A and the first block body 141A.
[0022] The magnetic field sensor 20A is coupled to the jig body 10A, and at least a portion of it is located between the first contact portion 1411A and the second contact portion 1421A. The magnetic field sensor 20A is for sensing the magnetic field of the magnetic scale 30A that passes through the insertion opening A and passes below the first contact portion 1411A and below the second contact portion 1421A. In this second preferred embodiment, the magnetic field sensor 20A is a long magnetic field observation sheet, and the magnetic field sensor 20A is inclined with respect to the base 121A and the direction of movement L. One of the ends of the magnetic field sensor 20A is coupled by screw to the surface of the first block body 141A opposite to the second block body 142A, and the other end of the magnetic field sensor 20A is coupled by screw to the surface of the second block body 142A opposite to the first block body 141A. As a result, both ends of the magnetic field sensor 20A are fixed to the first block body 141A and the second block body 142A, respectively, and both sides of the magnetic field sensor 20A are in contact with the first contact portion 1411A and the second contact portion 1421A, respectively, and the central portion of the magnetic field sensor 20A is exposed to the outside through the observation window 144A. In other preferred embodiments, both ends of the magnetic field sensor 20A may be fixed to the first block body 141A and the second block body 142A, respectively, by adhesive means.
[0023] As shown in Figures 11 and 13 to 16, when using the magnetic scale attachment jig 100A having a magnetic detection function according to the second preferred embodiment of the present invention, the magnetic scale 30A is attached to the platform 40A of the equipment. For example, a magnetic scale 30A corresponding to an encoder 50A with a width of 12 to 16 mm is attached to the platform 40A of the equipment. During operation, the base portion 1451A and the first block body 141A are simultaneously brought into contact with the front surface of the encoder 50A, and the base portion 1451A and the connecting handle 1452A of the connecting arm 145A are brought into contact with the front corner surface of the encoder 50A, respectively. Next, the jig body 10A is fixed to the encoder 50A by inserting bolts through each bolt insertion hole 1453A and screwing them to the encoder 50A.
[0024] Then, the release paper 32A attached to the underside of one end of the magnetic scale 30A is peeled off, and the magnetic scale 30A with the adhesive exposed is passed through the insertion opening A, passing below the first contact portion 1411A and below the second contact portion 1421A, and pulled out from between the first contact portion 1411A and the base 121A. The end of the magnetic scale 30A with the adhesive exposed is then attached to the surface of the platform 40A, and the release paper 32A peeled off from the underside of the magnetic scale 30A as described above is extended outward via the underside of the guide arc surface 165A. Subsequently, as the platform 40A moves, the guide arc surface 165A of the guide structure 16A can assist the user in sequentially peeling off the release paper 32A attached to the underside of the magnetic scale 30A.
[0025] As the jig body 10A moves relative to the platform 40A, the first contact portion 1411A presses against a portion of the magnetic scale 30A passing beneath it, causing that portion of the magnetic scale 30A to adhere to the surface of the platform 40A. During the process of attaching the magnetic scale 30A, the magnetic scale 30A, which has multiple magnetic poles, passes beneath the magnetic field sensor 20A at an angle with respect to the base 121A. The user can observe the magnetic field sensor 20A through the observation window 144A and observe the changes in brightness or color that appear in the magnetic powder of the magnetic field sensor 20A to determine the number of magnetic poles of the magnetic scale 30A and the shape of each magnetic pole, and to determine whether or not there is any damage to the magnetic poles of the magnetic scale 30A that pass beneath the magnetic field sensor 20A.
[0026] If it is necessary to change the downward pressing force applied by the first contact portion 1411A to the magnetic scale 30A, the distance between the first contact portion 1411A and the base 121A can be adjusted by changing the position in which the first dovetail 1412A is fixed to the first dovetail groove 123A. This allows for adaptive adjustment of the downward pressing force applied by the first contact portion 1411A to the magnetic scale 30A when using the magnetic scale attachment jig 100A with magnetic detection function, preventing excessive pressure from being applied to the magnetic scale 30A during use and thus preventing damage to the magnetic scale 30A. If it is necessary to change the position of the guide structure 16A, the guide arc surface 165A of the guide structure 16A can be adjusted to a higher or lower position by changing the position in which the second dovetail 163A is fixed to the second dovetail groove 124A.
[0027] As shown in Figures 17 to 19, the magnetic scale attachment jig 100B having a magnetic detection function according to the third preferred embodiment of the present invention comprises a jig body 10B and a magnetic field sensor 20B. The jig body 10B includes a side plate 12B, a contact structure 14B, and a guide structure 16B. The side plate 12B is a rectangular long plate, and the direction in which the two long sides of the side plate 12B extend is defined as the direction of movement L. The two short sides of the side plate 12B correspond to both sides of the direction of movement L, and the two long sides of the side plate 12B are defined as the base 121B and the top 122B, respectively.
[0028] The contact structure 14B is connected to the side plate 12B and includes a long block 146B, a first block body 141B, and a rib 147B. The long block 146B is a linear block body extending along the direction of movement L and is connected to the portion of the side plate 12B adjacent to the top edge 122B. The first block body 141B is connected to the side of the side plate 12B corresponding to the direction of movement L, and the side of the first block body 141B opposite to the bottom edge 121B is connected to the long block 146B. A first contact portion 1411B is formed on the surface of the first block body 141B facing the bottom edge 121B. The first contact portion 1411B has an arc-shaped surface and is located close to the bottom edge 121B. A base 1412B is formed on one side of the first contact portion 1411B that is close to the guide structure 16B. At the end of the long block 146B opposite to the first block body 141B, a second contact portion 1461B is formed as an inclined surface on the surface facing its base 121B. The first contact portion 1411B and the second contact portion 1461B are positioned spaced apart on both sides of the side plate 12B along the direction of movement L, and the first contact portion 1411B and the second contact portion 1461B each face the base 121B.
[0029] Rib 147B is connected to the portion of the side plate 12B located between the first block body 141B and the guide structure 16B. One end of rib 147B opposite the base 121B is connected to the elongated block 146B, and a base surface 1471B is formed at the other end of rib 147B opposite the base 121B. An observation window 144B is formed between the first block body 141B and the rib 147B on the side opposite the side plate 12B, and the observation window 144B is open in the direction opposite to the side plate 12B. At the end of the elongated block 146B opposite the first block body 141B, a mounting hole 143B is formed on the surface opposite to the side plate 12B. At the end where the long block 146B and the first block body 141B are connected, another mounting hole 143B is formed on the side opposite to the side plate 12B, and each mounting hole 143B penetrates the side plate 12B.
[0030] The guide structure 16B is connected to the side plate 12B on the opposite side corresponding to the direction of movement L, and at a position close to the base 121B. The direction in which the guide structure 16B and the second contact portion 1461B are arranged is perpendicular to the direction of movement L. The guide structure 16B is a block body, and a guide inclined surface 164B is formed on the surface facing the second contact portion 1461B. The guide inclined surface 164B is approximately parallel to the second contact portion 1461B, and an insertion opening A is formed between the second contact portion 1461B and the guide structure 16B. A guide arc surface 165B is formed on the surface of the guide structure 16B opposite to the second contact portion 1461B, and the side of the guide arc surface 165B facing the first block body 141B is connected to the guide inclined surface 164B.
[0031] The magnetic field sensor 20B is coupled to the jig body 10B, and at least a portion of it is located between the first contact portion 1411B and the second contact portion 1461B. In this third preferred embodiment, the magnetic field sensor 20B is a long magnetic field observation sheet, and both ends thereof are fixed to the base 1412B and the base surface 1471B by adhesive, respectively. The magnetic field sensor 20B is parallel to the bottom 121B, and the central portion of the magnetic field sensor 20B is exposed to the outside through the observation window 144B. In other preferred embodiments, both ends of the magnetic field sensor 20B may be fixed to the base 1412B and the base surface 1471B by high-frequency adhesive or screw fastening, respectively.
[0032] The above description is merely a preferred and implementable embodiment of the present invention, and equivalent modifications made based on the specification and claims of the present invention should naturally be included within the scope of the present invention. [Explanation of Symbols]
[0033] 100, 100A, 100B: Magnetic scale attachment fixture with magnetic detection function 10, 10A, 10B: Jig body 12, 12A, 12B: Side plate 121, 121A, 121B: Base 122, 122A, 122B: Top 14, 14A, 14B: Contact structure 141, 141A, 141B: First block body 1411, 1411A, 1411B: 1st contact part 142, 142A: Second block body 1421, 1421A: Second contact part 143, 143B: Mounting holes 144, 144A, 144B: Observation window 16, 16A, 16B: Guide structure 161: Axis rod 162: Laura 20, 20A, 20B: Magnetic field sensors 30, 30A: Magnetic scale 32, 32A: Release paper 40, 40A: Platform A: Insertion opening L: Movement direction N: Distance between magnetic poles 123A: 1st dovetail groove 124A:Second dovetail groove 1412A: First ant tenon 145A: Connecting arm 1451A: Base 1452A: Connecting pattern 1453A: Bolt insertion hole 163A: Second dovetail joint 164A, 164B: Guide inclined surface 165A, 165B: Guide arc surface 50A: Encoder 1412B: Pedestal 146B: Long block 1461B: Second contact part 147B: Rib 1471B: Base
Claims
1. A jig body having a first contact portion and a second contact portion provided on opposite sides and spaced apart from each other, A magnetic field sensor is coupled to the jig body and is used to sense the magnetic field of a magnetic scale passing through the first contact portion and the second contact portion. A magnetic scale attachment jig equipped with a magnetic detection function.
2. The jig body includes a side plate, a contact structure, and a guide structure. The side plate is a rectangular long plate extending along the direction of movement, the two short sides of the side plate correspond to both sides in the direction of movement, and the two long sides of the side plate are defined as the base and the apex, respectively. The contact structure is connected to the side plate and forms the first contact portion and the second contact portion on both sides of the side plate corresponding to the direction of movement. The first contact portion and the second contact portion are arranged with a gap between them and facing the same direction. The magnetic scale attachment jig having a magnetic detection function according to claim 1, characterized in that the guide structure is coupled to the side plate, the direction in which it is arranged with the second contact portion is perpendicular to the direction of movement, and an insertion opening is formed between the second contact portion and the guide structure.
3. The aforementioned contact structure includes a first block body and a second block body, The first block body is coupled to one side of the side plate corresponding to the direction of movement, near the bottom edge, and the first contact portion is an arc-shaped surface and is formed on the surface of the first block body facing the bottom edge. The second block body is coupled to the other side of the side plate corresponding to the direction of movement, near the top edge, and the second contact portion is an inclined surface and is formed on the surface facing the bottom edge of the second block body. The guide structure includes a shaft and a roller, one end of the shaft is coupled to the other side of the side plate corresponding to the direction of movement and near the bottom edge, and the roller is rotatably fitted onto the shaft. An observation window is formed between the first block body and the second block body, and mounting holes are formed in the first block body and the second block body, The magnetic field sensor is a long magnetic field observation sheet, the ends of which are fixed to the first block body and the second block body, the magnetic field sensor is inclined with respect to the base, and the portions on both sides thereof are in contact with the first contact portion and the second contact portion, the central portion of the magnetic field sensor is exposed to the outside through the observation window, as described in claim 2 for magnetic scale attachment jig having a magnetic detection function.
4. The magnetic scale attachment jig having a magnetic detection function according to claim 3, characterized in that one end of the magnetic field sensor is connected by screw to the surface of the first block body opposite to the second block body, and the other end of the magnetic field sensor is connected by screw to the surface of the second block body opposite to the first block body.
5. The aforementioned contact structure includes a first block body, a second block body, and a connecting arm. The first block body is coupled to one side of the side plate corresponding to the direction of movement, near the bottom edge, and the first contact portion is an arc-shaped surface and is formed on the surface of the first block body facing the bottom edge. The second block body is coupled to the other side of the side plate corresponding to the direction of movement, near the top edge, and the second contact portion is an inclined surface and is formed on the surface facing the bottom edge of the second block body. The connecting arm includes a base and a connecting handle, the base being connected to one side of the side plate corresponding to the direction of movement, near the top edge, the connecting handle being connected to the base and protruding from the side plate along the direction of movement, and the connecting handle being provided with two bolt insertion holes. The guide structure is coupled to the other side of the side plate corresponding to the direction of movement, near the bottom edge. An observation window is formed between the second block body, the base, and the first block body. The magnetic field sensor is a long magnetic field observation sheet, the ends of which are fixed to the first block body and the second block body, the magnetic field sensor is inclined with respect to the base, and the portions on both sides thereof are in contact with the first contact portion and the second contact portion, the central portion of the magnetic field sensor is exposed to the outside through the observation window, as described in claim 2 for magnetic scale attachment jig having a magnetic detection function.
6. The magnetic scale attachment jig having a magnetic detection function according to claim 5, characterized in that one end of the magnetic field sensor is connected by screw to the surface of the first block body opposite to the second block body, and the other end of the magnetic field sensor is connected by screw to the surface of the second block body opposite to the first block body.
7. The magnetic scale attachment jig having a magnetic detection function according to claim 6, characterized in that the guide structure is a block body, a guide inclined surface is formed on the surface facing the second block body, a guide arc surface is formed on the surface of the guide structure opposite to the second block body, and the portion of the guide arc surface facing the first block body is connected to the guide inclined surface.
8. A first dovetail groove is formed on one side of the side plate corresponding to the direction of movement, a second dovetail groove is formed on the other side of the side plate corresponding to the direction of movement, and the extending directions of the first and second dovetail grooves are perpendicular to the direction of movement. Corresponding to the first dovetail groove, a first dovetail tenon is formed in the first block body, and the first dovetail tenon is fitted into the first dovetail groove by interlocking, so that the first block body and the base are spaced apart and their arrangement direction is perpendicular to the direction of movement. The magnetic scale attachment jig having a magnetic detection function according to claim 5, characterized in that a second dovetail joint is formed in the guide structure corresponding to the second dovetail groove, and the guide structure is coupled to the side plate by the second dovetail joint being fitted into the second dovetail groove by a napping fit.
9. The aforementioned contact structure includes a long block, a first block body, and ribs. The aforementioned elongated block is a linear block body extending along the direction of movement, and is connected to the portion of the side plate adjacent to the top edge. The first block body is coupled to one side of the side plate corresponding to the direction of movement, the side of the first block body opposite to the bottom edge is connected to the elongated block, and mounting holes are formed at both ends of the elongated block. The first contact portion is an arc-shaped surface, formed on the surface facing the bottom edge of the first block body, and a base is formed on one side of the first contact portion that is closer to the guide structure. The second contact portion is an inclined surface and is formed on the surface of the end of the elongated block opposite to the first block body, facing the bottom edge. The guide structure is coupled to the other side of the side plate corresponding to the direction of movement, near the bottom edge. The rib is connected to the portion of the side plate located between the first block body and the guide structure, one end of the rib opposite the bottom edge is connected to the long block, and a base surface is formed at the other end of the rib facing the bottom edge. An observation window is formed between the first block body and the rib, on the side opposite to the side plate. The magnetic field sensor is a long magnetic field observation sheet, the ends of which are fixed to the base and the base surface, the magnetic field sensor is parallel to the bottom edge, and the central portion of the magnetic field sensor is exposed to the outside through the observation window, as described in claim 2 for magnetic scale attachment jig having a magnetic detection function.
10. The magnetic scale attachment jig having a magnetic detection function according to claim 9, characterized in that the guide structure is a block body, a guide inclined surface is formed on the surface facing the second contact portion, a guide arc surface is formed on the surface of the guide structure opposite to the second contact portion, and the portion of the guide arc surface facing the first block body is connected to the guide inclined surface.