Linear motor structure of grating ruler installation positioning groove

Abstract

The utility model relates to the technical field of linear motors, in particular to a linear motor structure of a grating ruler installation positioning groove, which comprises a main frame, a movable assembly and a detection assembly, the detection assembly and the movable assembly are both connected with the main frame, the detection assembly comprises a grating ruler, a reading head and a contact sensor, and the side surface of the main frame is provided with an installation groove. The installation grooves are distributed in the upper end and the lower end of the side face of the main frame, the grating ruler is installed in the installation grooves, the reading head is arranged on the side, away from the main frame, of the grating ruler, and T-shaped grooves are formed in the positions, close to the installation grooves, of the bottom of the main frame. The grating ruler can be mounted without additionally mounting a platform during mounting, meanwhile, the mounting groove is matched with the grating ruler, the grating ruler can be mounted only by placing the grating ruler into the mounting groove during mounting, the grating ruler can be ensured to be parallel to the traveling track of the reading head only by paying attention to fitting of the grating ruler and the notch in the mounting process, and the mounting speed is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of linear motors, in particular to a linear motor structure with a scale installation positioning groove. Background Art

[0002] A linear motor is a motor that converts electrical energy directly into mechanical energy for linear motion. Its structure is different from that of a traditional rotary motor. A linear motor usually consists of two parts: a stator and a rotor. The stator is fixed to the base of the robot, while the rotor moves along the length of the stator.

[0003] Compared with traditional rotary motors, linear motors have many advantages. First, due to their special structure, linear motors can provide higher precision and faster response speed, which makes them widely used in robotics. Secondly, linear motors do not need to convert motion through gears or other mechanical parts, so they have higher efficiency and reliability. In addition, since linear motors have no rotating parts, they can avoid vibration and noise caused by rotating parts.

[0004] A scale is a device used to measure length, angle and position, usually mounted on a linear motor. A scale usually consists of a scale body with a scale mark and a sensor that can measure the position of an object relative to the sensor. An optical scale uses the optical principle of a grating for measurement, while a magnetic scale uses magnetism and optics for high-precision measurement.

[0005] Existing linear motors usually use this installation method when installing scales: during installation, the installer needs to install an additional installation platform between the scale and the linear motor to achieve the installation effect of the scale; during the installation process, this installation method requires the installer to always pay attention to whether the scale's straightness, parallelism, verticality and other indicators meet the requirements. The installation process is relatively cumbersome, affecting the efficiency of the installation. Utility Model Content

[0006] The purpose of the utility model is achieved in the following way: a linear motor structure with a scale mounting positioning groove, comprising a main frame, a movable component and a detection component, the detection component and the movable component are connected to the main frame, the detection component comprises a scale, a reading head and a contact sensor, a mounting groove is provided on the side of the main frame, the mounting grooves are distributed at the upper end and the lower end of the side of the main frame, the scale is detachably mounted in the mounting groove, the reading head is arranged on the side of the scale away from the main frame, and the detection surface of the reading head is arranged on the side close to the scale, a T-slot is provided at the bottom of the main frame near the mounting groove, the contact sensor is detachably connected to the T-slot, the contact sensors are relatively arranged on both sides of the T-slot, a detection groove is provided on the top of the contact sensor, a detection plate is installed on one side of the reading head, and the lower end of the detection plate extends in the direction of the detection groove.

[0007] In the above description, a further scheme is made, in which the movable component includes a movable seat, a mounting seat, a retaining frame and a ball. The movable seat can be movably arranged in a movable groove provided in the middle of the main frame, the mounting seat is fixedly installed on the top surface of the movable seat, and the retaining frame is fixed at both ends of the bottom of the mounting frame; the movable seat is used to drive the mounting seat to move.

[0008] In the above description, a further scheme is made, guide slides matching the balls are provided on both sides of the retaining frame, ball through holes matching the balls are provided in the middle of the mounting seat near the guide slides, inner slides are provided on both sides of the mounting seat near the guide slides, the inner slides match the guide slides and the two ends of the inner slides are fitted with the guide slides, the balls are movably distributed on the ball through holes, the guide slides and the inner slides, the inner wall of the movable groove is provided with outer slides matching the inner slides near the inner slides, and the outer slides extend toward the two ends of the movable groove; the balls are used to reduce the friction between the mounting seat and the main frame when it moves, and at the same time, the inner slides, the outer slides and the guide slides can provide a positioning effect for the balls.

[0009] In the above description, a further scheme is made, in which the reading head is fixedly connected to the side of the mounting seat through a connecting block, a mounting hole is provided at the upper end of the detection plate, and a connecting position matching the mounting hole is provided on the side of the mounting seat near the mounting hole; the reading head is used to cooperate with the scale to realize scanning measurement of the scale and complete the measurement effect.

[0010] In the above description, a further solution is provided, in which limit assemblies are installed at both ends of the main frame, and the limit assemblies include side limit plates and rubber blocks. The side limit plates are fixed at the two ends of the frame, and the rubber blocks are fixed on the side of the side limit plates facing the movable seat; the rubber blocks can be provided to prevent the movable seat from colliding due to excessive movement speed when the movable seat moves to the two ends of the main frame.

[0011] In the above description, a further solution is provided, in which a top limit plate is installed on the top of the side limit plate, and the top surface of the mounting seat is provided with an avoidance position matching the top limit plate, and connecting holes are distributed on both sides of the avoidance position; the top limit plate is used to limit the top surface of the mounting seat.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: by opening a mounting groove on the side of the main frame, when installing the scale, there is no need to install an additional platform to install the scale, and the mounting groove matches the scale. During installation, it is only necessary to place the scale into the mounting groove to achieve the installation of the scale. During the installation process, it is only necessary to pay attention to the fit between the scale and the groove to ensure the parallelism of the scale and the walking trajectory of the reading head. While the installation speed is faster, the mounting grooves are distributed at the upper and lower ends of the main frame. Users can achieve adaptation effects for different equipment according to different mounting grooves, thereby increasing the scope of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of a linear motor structure with a scale installation positioning groove according to the utility model;

[0014] Figure 2 It is a schematic diagram of the structural decomposition of a linear motor structure with a scale installation positioning groove according to the utility model;

[0015] Figure 3 It is a cross-sectional view of a linear motor structure with a scale installation positioning groove according to the utility model;

[0016] Figure 4 yes Figure 1 A magnified schematic diagram of structure A;

[0017] Figure 5 yes Figure 2 A magnified schematic diagram of structure B;

[0018] Figure 6 yes Figure 2 A magnified schematic diagram of structure C;

[0019] In the figure: 1-main frame, 2-scale, 3-reading head, 4-contact sensor, 5-mounting slot, 6-T-slot;

[0020] 7-detection slot, 8-detection plate, 9-movable seat, 10-mounting seat, 11-cage, 12-ball;

[0021] 13-guide slideway, 14-ball through hole, 15-inner slideway, 16-outer slideway, 17-mounting hole;

[0022] 18-connection position, 19-side limit plate, 20-rubber block, 21-top limit plate, 22-connection hole. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] For this example, please refer to Figure 1-6 A linear motor structure with a scale mounting positioning groove is specifically implemented, comprising a main frame 1, a movable component and a detection component, both of which are connected to the main frame 1, the detection component comprising a scale 2, a reading head 3 and a contact sensor 4, a mounting groove 5 is provided on the side of the main frame 1, the mounting groove 5 is distributed at the upper end and the lower end of the side of the main frame 1, the scale 2 is detachably mounted in the mounting groove 5, the reading head 3 is arranged on the side of the scale 2 away from the main frame 1, and the detection surface of the reading head 3 is arranged on the side close to the scale 2, a T-slot 6 is provided at the bottom of the main frame 1 near the mounting groove 5, the contact sensor 4 is detachably connected to the T-slot 6, the contact sensor 4 is relatively arranged on both sides of the T-slot 6, a detection groove 7 is provided on the top of the contact sensor 4, a detection plate 8 is installed on one side of the reading head 3, and the lower end of the detection plate 8 extends in the direction of the detection groove 7.

[0025] The movable assembly includes a movable seat 9, a mounting seat 10, a retaining frame 11 and a ball 12. The movable seat 9 is movably arranged in a movable groove provided in the middle of the main frame 1, the mounting seat 10 is fixedly installed on the top surface of the movable seat 9, and the retaining frame 11 is fixed at both ends of the bottom of the mounting frame.

[0026] Guide slides 13 matching the balls 12 are provided on both sides of the retaining frame 11, a ball through hole 14 matching the balls 12 is provided in the middle of the mounting seat 10 near the guide slide 13, inner slides 15 are provided on both sides of the mounting seat 10 near the guide slide 13, the inner slides 15 match the guide slides 13 and the two ends of the inner slides 15 fit with the guide slides 13, the balls 12 are movably distributed on the ball through holes 14, the guide slides 13 and the inner slides 15, an outer slide 16 matching the inner slide 15 is provided on the inner wall of the movable groove near the inner slide 15, and the outer slides 16 extend toward the two ends of the movable groove.

[0027] The reading head 3 is fixedly connected to the side of the mounting seat 10 through a connecting block. A mounting hole 17 is provided at the upper end of the detection plate 8, and a connecting position 18 matching the mounting hole 17 is provided at a position near the mounting hole 17 on the side of the mounting seat 10.

[0028] The two ends of the main frame 1 are equipped with a limit assembly, which includes a side limit plate 19 and a rubber block 20. The side limit plate 19 is fixed at the two ends of the frame, and the rubber block 20 is fixed on the side of the side limit plate 19 facing the movable seat 9.

[0029] A top limiting plate 21 is installed on the top of the side limiting plate 19 , and a relief position matching the top limiting plate 21 is provided on the top surface of the mounting seat 10 , and connecting holes 22 are distributed on both sides of the relief position.

[0030] The installation process of the utility model is as follows: after the outer slide 16 is installed and connected to the inner wall of the movable groove provided in the middle of the main frame 1, the side limit plates 19 are connected to the two ends of the main frame 1, and then the rubber block 20 is fixed to the side limit plates 19. After the fixing is completed, the movable seat 9 and the mounting seat 10 are connected, and the retaining frame 11 and the inner slide 15 are fixed on the mounting seat 10, and then the assembled movable seat 9, the mounting seat 10 and the retaining frame 11 are placed in the main frame 1, and the inner slide 15 and the outer slide 16 are aligned. After alignment, the guide Add balls 12 into the slideway 13 until the balls 12 fill the inner slideway 15, the guide slideway 13 and the through hole 14 of the balls 12. After the balls 12 are placed, connect the top limit plate 21 with the side limit plate 19, and then fix the scale 2 in the installation groove 5. During the installation process, ensure that the scale 2 fits the groove. After the installation of the scale 2 is completed, connect the reading head 3 and the detection plate 8 with the side of the mounting seat 10, and then connect the contact sensor 4 with the T-slot 6. When installing the contact sensor 4, ensure that it is aligned with the end of the scale 2.

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0032] In addition, in the description of the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0033] Finally, it should be noted that the above embodiments are only specific implementation methods of the utility model, which are used to illustrate the technical solution of the utility model, rather than to limit it. The protection scope of the utility model is not limited thereto. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art should understand that any technician familiar with the technical field can still modify the technical solution recorded in the above embodiments within the technical scope disclosed by the utility model, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solution of the embodiment of the utility model, and should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. A linear motor structure with a scale mounting positioning groove, comprising a main frame, a movable component and a detection component, wherein the detection component and the movable component are both connected to the main frame, and characterized in that: The detection component includes a scale, a reading head and a contact sensor. A mounting groove is provided on the side of the main frame, and the mounting grooves are distributed at the upper end and the lower end of the side of the main frame. The scale is detachably installed in the mounting groove. The reading head is arranged on the side of the scale away from the main frame, and the detection surface of the reading head is arranged on the side close to the scale. A T-slot is provided at the bottom of the main frame near the mounting groove. The contact sensor is detachably connected to the T-slot, and the contact sensors are relatively arranged on both sides of the T-slot. A detection groove is provided on the top of the contact sensor. A detection plate is installed on one side of the reading head, and the lower end of the detection plate extends in the direction of the detection groove.

2. A linear motor structure with a scale mounting positioning groove according to claim 1, characterized in that: The movable assembly includes a movable seat, a mounting seat, a retaining frame and a ball. The movable seat can be movably arranged in a movable groove arranged in the middle of the main frame. The mounting seat is fixedly installed on the top surface of the movable seat, and the retaining frame is fixed at both ends of the bottom of the mounting frame.

3. A linear motor structure with a scale mounting positioning groove according to claim 2, characterized in that: Guide slides matching the balls are provided on both sides of the retaining frame, ball through holes matching the balls are provided in the middle of the mounting seat near the guide slides, inner slides are provided on both sides of the mounting seat near the guide slides, the inner slides match the guide slides and the two ends of the inner slides fit with the guide slides, the balls are movably distributed on the ball through holes, the guide slides and the inner slides, an outer slide matching the inner slide is provided on the inner wall of the movable groove near the inner slide, and the outer slides extend toward the two ends of the movable groove.

4. A linear motor structure with a scale mounting positioning groove according to claim 2, characterized in that: The reading head is fixedly connected to the side of the mounting seat through a connecting block. A mounting hole is arranged at the upper end of the detection plate, and a connecting position matching the mounting hole is arranged at a position near the mounting hole on the side of the mounting seat.

5. A linear motor structure with a scale mounting positioning groove according to claim 1, characterized in that: The two ends of the main frame are equipped with limiting components, which include side limiting plates and rubber blocks. The side limiting plates are fixed at the two ends of the frame, and the rubber blocks are fixed at one side of the side limiting plates facing the movable seat.

6. A linear motor structure with a scale mounting positioning groove according to claim 5, characterized in that: A top limiting plate is installed on the top of the side limiting plate, and a relief position matching the top limiting plate is provided on the top surface of the mounting seat, and connecting holes are distributed on both sides of the relief position.

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