Press-fit type pressure injection linear motor structure

Abstract

The utility model relates to the technical field of linear motors, in particular to a press-fit type pressure injection linear motor structure which comprises a rack, a movable assembly and an oil injection assembly, the movable assembly comprises a movable seat, retainers and balls, the movable seat is movably arranged on the rack, the retainers are installed on the two sides of the lower end of the movable seat, and the balls are installed on the oil injection assembly. The oil injection assembly comprises a press-fit type oil injection cup and an oil injection groove, the oil injection groove is formed in the inner side of the movable seat, a mounting groove is formed in the position, close to the side face of the movable seat, of the oil injection groove, the press-fit type oil injection cup is movably arranged in the mounting groove, and the position, close to the ball groove, of the oil injection groove penetrates and extends in the direction of the ball groove. According to the press-fit type oil injection cup, oil is injected into the press-fit type oil injection cup and enters the ball groove through the oil injection groove, the oil injection effect on the balls is achieved, meanwhile, the oil way is arranged in the movable base, the occupied space is reduced, the oil injection step is simplified, and the oil injection effect can be achieved without disassembling the cover plate.

Description

Technical Field

[0001] The utility model relates to the technical field of linear motors, in particular to a press-fit type injection-molded linear motor structure. 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] Due to the special structure of linear motors, their oiling method is different from that of traditional rotary motors, and special oiling tools and methods are required, which makes the maintenance of linear motors more complicated and difficult. The operation is cumbersome during oiling, and the cover needs to be removed to achieve oiling of the linear motor. Therefore, to address this problem, a press-fit injection linear motor structure is provided. Utility Model Content

[0005] The purpose of the utility model is achieved in the following way: a press-fit type injection linear motor structure, including a frame, a movable component and an oil injection component, the movable component is connected to the oil injection component, the movable component is connected to the frame, the movable component includes a movable seat, a retaining frame and a ball, the movable seat is movably arranged on the frame, the retaining frame is installed on both sides of the lower end of the movable seat, the balls are rollably distributed in the ball groove provided on the inner side of the movable seat and the guide slide provided on the outer side of the retaining frame, the oil injection component includes a press-fit type oil injection cup and an oil injection groove, the oil injection groove is arranged on the inner side of the movable seat, the oil injection groove is provided with an installation groove near the side of the movable seat, the press-fit type oil injection cup is movably arranged in the installation groove, the oil injection groove is extended through in the direction of the ball groove near the ball groove, the top surface of the movable seat is provided with an oil injection through hole near the oil injection groove, and a locking screw is installed in the oil injection through hole.

[0006] In the above description, a further scheme is made, in which a movable groove matching the movable seat is provided in the middle of the frame, the movable seat is movably arranged in the movable groove, inner slides matching the guide slides are provided at the two ends of the movable seat near the guide slides, outer slides matching the inner slides are provided at the positions near the inner slides in the movable groove, and the two ends of the outer slides extend toward the two ends of the movable groove; both the outer slides and the inner slides can provide the movable effect of the ball, so that the ball drives the movable seat to move

[0007] In the above description, as a further solution, the relative positions of the inner slideway and the outer slideway are both provided with movable positions matching the balls; the movable positions can provide movable space for the balls.

[0008] In the above description, a further scheme is made, in which a movable hole matching the ball groove is opened at a position near the ball groove of the guide slide, a positioning protrusion is provided at a position near the ball groove of the movable hole, a positioning groove matching the positioning protrusion is provided at a position near the positioning protrusion of the ball groove, and the movable hole extends in the direction of the ball groove; the positioning protrusion can provide a positioning installation effect for the retaining frame.

[0009] In the above description, a further scheme is made, in which limit assemblies are installed at both ends of the 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, and a connecting hole is provided on the top of the side limit plates; the side limit plates and the rubber blocks can limit and protect the movable seat when the movable seat moves.

[0010] In the above description, a further scheme is made, in which a top limit plate is installed on the top of the side limit plate, both ends of the top limit plate are provided with installation positions matching the connecting holes, and the top surface of the movable seat is provided with an avoidance position matching the top limit plate; the top limit plate can limit the movable seat in the vertical direction.

[0011] Compared with the prior art, the beneficial effect of the utility model is that by providing a press-fit oil filling cup and an oil filling groove in the movable seat, compared with the traditional oil filling method, when filling oil, the utility model only needs to inject grease into the press-fit oil filling cup, and the grease enters the ball groove through the oil filling groove to achieve the oiling effect on the ball. At the same time, the oil circuit is arranged in the movable seat, which reduces the occupied space and simplifies the oiling steps. There is no need to remove the cover plate to achieve the oiling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of a press-fit type injection-molded linear motor structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the structure decomposition of a press-fit type injection-molded linear motor structure of the utility model;

[0014] Figure 3 It is a cross-sectional view of a press-fit type injection-molded linear motor structure of the utility model;

[0015] In the figure: 1-frame, 2-movable seat, 3-cage, 4-ball, 5-ball groove, 6-guide slide;

[0016] 7-press-fit oil filling cup, 8-oil filling groove, 9-mounting groove, 10-oil filling through hole, 11-locking screw;

[0017] 12-movable groove, 13-inner slideway, 14-outer slideway, 15-movable position, 16-movable hole;

[0018] 17-positioning protrusion, 18-positioning groove, 19-side limiting plate, 20-rubber block, 21-connecting hole;

[0019] 22-installation position, 23-avoidance position. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] For this example, please refer to Figure 1-3 , a press-fit type injection linear motor structure specifically implemented, includes a frame 1, a movable component and an oil injection component, the movable component is connected to the oil injection component, and the movable component is connected to the frame 1, characterized in that: the movable component includes a movable seat 2, a retaining frame 3 and a ball 4, the movable seat 2 is movably arranged on the frame 1, the retaining frame 3 is installed on both sides of the lower end of the movable seat 2, the ball 4 can be rolled in the ball groove 5 provided on the inner side of the movable seat 2 and the guide slide 6 provided on the outer side of the retaining frame 3, the oil injection component includes a press-fit oil injection cup 7 and an oil injection groove 8, the oil injection groove 8 is arranged on the inner side of the movable seat 2, the oil injection groove 8 is provided with a mounting groove 9 near the side of the movable seat 2, the press-fit oil injection cup 7 is movably arranged in the mounting groove 9, the oil injection groove 8 is extended through in the direction of the ball groove 5 near the ball groove 5, and an oil injection through hole 10 is provided on the top surface of the movable seat 2 near the oil injection groove 8, and a locking screw 11 is installed in the oil injection through hole 10.

[0022] A movable groove 12 matching the movable seat 2 is provided in the middle of the frame 1, and the movable seat 2 is movably arranged in the movable groove 12. Inner slides 13 matching the guide slides 6 are provided at both ends of the movable seat 2 near the guide slides 6. An outer slide 14 matching the inner slide 13 is provided in the movable groove 12 near the inner slide 13, and both ends of the outer slide 14 extend toward the two ends of the movable groove 12.

[0023] The inner slideway 13 and the outer slideway 14 are both provided with movable positions 15 matching with the balls 4 at the positions opposite to each other.

[0024] A movable hole 16 matching the ball groove 5 is provided at a position of the guide slide 6 near the ball groove 5, a positioning protrusion 17 is provided at a position of the movable hole 16 near the ball groove 5, a positioning groove 18 matching the positioning protrusion 17 is provided at a position of the ball groove 5 near the positioning protrusion 17, and the movable hole 16 extends toward the direction of the ball groove 5.

[0025] Limiting components are installed at both ends of the frame 1, and the limiting components include side limiting plates 19 and rubber blocks 20. The side limiting plates 19 are fixed at the two ends of the frame 1, and the rubber blocks 20 are fixed on the side of the side limiting plates 19 facing the movable seat 2. A connecting hole 21 is provided on the top of the side limiting plates 19.

[0026] A top limiting plate 24 is installed on the top of the side limiting plate 19 . Both ends of the top limiting plate 24 are provided with mounting positions 22 matching the connecting holes 21 . The top surface of the movable seat 2 is provided with an avoidance position 23 matching the top limiting plate 24 .

[0027] The oil filling process of the utility model is as follows: after grease is injected into the press-fit oil filling cup 7, the grease enters the ball groove 5 through the oil filling groove 8, and while filling the ball groove 5, the grease circulates in the ball groove 5 and contacts with the ball 4. When the movable seat 2 moves, the movable seat 2 passes through the guide slide 6 provided on the retaining frame 3, and the positions of the two ends of the movable seat 2 near the guide slide 6 are provided with inner slides 13 matching the guide slide 6, thereby realizing the circulation rolling of the ball 4 in the slide. When the ball 4 passes through the oil filling groove 8, it will contact with the grease in the oil filling groove 8, thereby realizing the oil filling and lubrication effect on the ball 4.

[0028] 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.

[0029] 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.

[0030] 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 press-fit type injection linear motor structure, comprising a frame, a movable component and an oil injection component, wherein the movable component is connected to the oil injection component, and the movable component is connected to the frame, characterized in that: The movable component includes a movable seat, a retaining frame and a ball. The movable seat is movably arranged on a frame, and the retaining frame is installed on both sides of the lower end of the movable seat. The balls are rollably distributed in a ball groove provided on the inner side of the movable seat and a guide slide provided on the outer side of the retaining frame. The oil filling component includes a press-fit oil filling cup and an oil filling groove. The oil filling groove is arranged on the inner side of the movable seat, and a mounting groove is provided at a position of the oil filling groove close to the side of the movable seat. The press-fit oil filling cup is movably arranged in the mounting groove, and the position of the oil filling groove close to the ball groove extends through in the direction of the ball groove. An oil filling through hole is provided on the top surface of the movable seat close to the oil filling groove, and a locking screw is installed in the oil filling through hole.

2. According to claim 1, a press-fit type injection molding linear motor structure is characterized in that: A movable groove matching the movable seat is provided in the middle of the frame, and the movable seat is movably arranged in the movable groove. Inner slides matching the guide slides are provided at positions near the guide slides at both ends of the movable seat, and outer slides matching the inner slides are provided at positions near the inner slides in the movable groove, and both ends of the outer slides extend toward both ends of the movable groove.

3. The press-fit type injection molding linear motor structure according to claim 2, characterized in that: The relative positions of the inner slideway and the outer slideway are both provided with movable positions matching with the balls.

4. The press-fit type injection molding linear motor structure according to claim 1, characterized in that: The guide slideway is provided with an active hole matching the ball groove near the ball groove, a positioning protrusion is provided near the ball groove, a positioning groove matching the positioning protrusion is provided near the positioning protrusion of the ball groove, and the active hole extends toward the direction of the ball groove.

5. The press-fit type injection molding linear motor structure according to claim 1, characterized in that: The two ends of the 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 on the side of the side limiting plates facing the movable seat. The top of the side limiting plates is provided with connecting holes.

6. The press-fit type injection molding linear motor structure according to claim 5, characterized in that: A top limiting plate is installed on the top of the side limiting plate, both ends of the top limiting plate are provided with mounting positions matching the connecting holes, and the top surface of the movable seat is provided with an avoidance position matching the top limiting plate.

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