A multi-station linear module

Abstract

The present invention discloses a multi-station linear module, including a base and a screw rod. The base has a slide rail, and the slide rail is slidably connected with a first active slider, a first driven slider, a second driven slider, and a second active slider in sequence; the screw rod has a positive thread section and a negative thread section, the positive thread section is threadedly connected with a first nut, and the negative thread section is threadedly connected with a second nut, the first active slider is arranged on the first nut, and the second active slider is arranged on the first nut; the first active slider is connected to the first driven slider through a first linkage mechanism, and the second active slider is connected to the second driven slider through a second linkage mechanism. Rotating the screw rod can drive the first active slider and the second active slider to move toward or away from each other, and then the first active slider drives the first driven slider to slide using the first linkage mechanism, and the second active slider drives the second driven slider to slide using the second linkage mechanism, thereby realizing the function of multiple stations moving together, with a simple structure and more convenient use.

Description

Technical Field

[0001] The present invention relates to the technical field of linear modules, and in particular to a multi-station linear module. Background Art

[0002] Linear modules are transmission devices that can provide linear motion and are widely used in the field of industrial automation. Existing linear modules have one or two stations, and there are few multi-station linear modules. In addition, the stations are independent of each other, the structure is complex, the control actions are cumbersome, and the use is very inconvenient. Summary of the invention

[0003] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a multi-station linear module, which has a simple structure, simple control action, and is more convenient to use.

[0004] The present invention provides a multi-station linear module, including a base and a screw rod. The base has a slide rail, and the slide rail is slidably connected with a first active slider, a first driven slider, a second driven slider, and a second active slider in sequence; the screw rod is arranged on the base and its length direction is parallel to the slide rail, the screw rod has a positive thread section and a negative thread section, the positive thread section is threadedly connected with a first nut, and the negative thread section is threadedly connected with a second nut, the first active slider is arranged on the first nut, and the second active slider is arranged on the first nut; the first active slider is connected to the first driven slider through a first linkage mechanism, and the second active slider is connected to the second driven slider through a second linkage mechanism.

[0005] The multi-station linear module according to the embodiment of the present invention has at least the following beneficial effects: the first active slider is arranged on the first nut, and the second active slider is arranged on the second nut, then the rotating screw rod can drive the first active slider and the second active slider to move toward or away from each other, and then the first active slider drives the first driven slider to slide by the first linkage mechanism, and the second active slider drives the second driven slider to slide by the second linkage mechanism, then one screw rod can drive the first active slider, the first driven slider, the second active slider, and the second driven slider to move, thus realizing the function of multiple stations moving together, and the structure is simple, and the movement of multiple stations can be controlled by only controlling the forward or reverse rotation of the screw rod, which is more convenient to use.

[0006] According to some embodiments of the present invention, the first linkage mechanism includes a first articulated rod and a first connecting rod, the first active slider is hinged to one end of the first articulated rod, the first connecting rod is hinged to the first driven slider, and the swing end of the first articulated rod is hinged to the swing end of the first connecting rod.

[0007] According to some embodiments of the present invention, the second linkage mechanism includes a second articulated rod and a second connecting rod, the second active slider is hinged to one end of the second articulated rod, the second connecting rod is hinged to the second driven slider, and the swing end of the second articulated rod is hinged to the swing end of the second connecting rod.

[0008] According to some embodiments of the present invention, the base is provided with a fixed seat located between the first driven slider and the second driven slider, the fixed seat is hinged with a third hinged rod, the middle part of the first connecting rod is hinged to the first driven slider, and the end of the first connecting rod facing away from the first hinged rod is hinged to the swing end of the third hinged rod.

[0009] According to some embodiments of the present invention, the fixing seat is hinged with a fourth hinged rod, the middle portion of the second connecting rod is hinged to the second driven slider, and one end of the second connecting rod facing away from the second hinged rod is hinged to the swing end of the fourth hinged rod.

[0010] According to some embodiments of the present invention, the middle portion of the third articulated rod is hinged to the fixed seat, the middle portion of the second connecting rod is hinged to the second driven slider, and one end of the second connecting rod facing away from the second articulated rod is hinged to one end of the third articulated rod facing away from the first connecting rod.

[0011] According to some embodiments of the present invention, the hinge center of the first active slider, the hinge center of the first driven slider, the hinge center of the fixed seat, the hinge center of the second driven slider, and the hinge center of the second active slider are on the same straight line.

[0012] According to some embodiments of the present invention, the lengths of the first connecting rod and the second connecting rod are matched, the lengths of the first hinged rod and the second hinged rod are matched, and the hinge center of the fixing seat is located at the center of the third hinged rod.

[0013] According to some embodiments of the present invention, the first active slider, the first driven slider, the second driven slider, and the second active slider are distributed on the slide rail in sequence and at equal intervals.

[0014] According to some embodiments of the present invention, there are multiple first driven sliders, there are multiple second driven sliders, two adjacent first driven sliders are connected via a third linkage mechanism, and two adjacent second driven sliders are connected via a fourth linkage mechanism.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0017] Figure 1 is a schematic structural diagram according to a first embodiment of the present invention;

[0018] Figure 2 is a schematic diagram of the internal structure according to the first embodiment of the present invention;

[0019] Figure 3 is a schematic structural diagram according to a second embodiment of the present invention;

[0020] Figure 4 2 is a schematic structural diagram according to a third embodiment of the present invention.

[0021] Reference numerals:

[0022] Base 100, slide rail 110, first active slider 120, first driven slider 130, second driven slider 140, second active slider 150,

[0023] Screw rod 200, positive thread section 210, first nut 211, negative thread section 220, second nut 221,

[0024] The first linkage mechanism 300, the first hinge rod 310, the first connecting rod 320,

[0025] The second linkage mechanism 400, the second hinge rod 410, the second connecting rod 420,

[0026] The fixing seat 500, the third hinge rod 510, the fourth hinge rod 520,

[0027] The third linkage mechanism 600,

[0028] Fourth linkage mechanism 700 . DETAILED DESCRIPTION

[0029] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0030] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0032] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0033] Reference Figure 1 to Figure 2A multi-station linear module includes a base 100 and a lead screw 200, wherein the base 100 has a slide rail 110, and the slide rail 110 is slidably connected with a first active slider 120, a first driven slider 130, a second driven slider 140, and a second active slider 150 in sequence; the lead screw 200 is arranged on the base 100 and its length direction is parallel to the slide rail 110, the lead screw 200 has a positive thread section 210 and a negative thread section 220, the positive thread section 210 is threadedly connected with a first nut 211, and the negative thread section 220 is threadedly connected with a second nut 221, the first active slider 120 is arranged on the first nut 211, and the second active slider 150 is arranged on the first nut 211; the first active slider 120 is connected to the first driven slider 130 through a first linkage mechanism 300, and the second active slider 150 is connected to the second driven slider 140 through a second linkage mechanism 400. That is, the first active slider 120, the first driven slider 130, the second active slider 150, and the second driven slider 140 can slide on the slide rail 110, the positive thread section 210 of the screw rod 200 is threadedly connected to the first nut 211, and the reverse thread section 220 is threadedly connected to the second nut 221. When the screw rod 200 rotates, the first nut 211 and the second nut 221 will move toward or away from each other, that is, the first active slider 120 and the second active slider 150 move toward or away from each other; since the first active slider 120 is connected to the first driven slider 130 through the first linkage mechanism 300, and the second active slider 150 is connected to the second driven slider 140 through the second linkage mechanism 400, when the first active slider 120 moves along the slide rail 110, the first driven slider 130 is driven to move through the first linkage mechanism 300; when the second active slider 150 moves along the slide rail 110, the second driven slider 140 is driven to move through the second linkage mechanism 400. The screw rod 200 is driven by a driving motor and can rotate forward and reverse, which is a prior art and will not be described in detail here. It can be understood that the first active slider 120, the first driven slider 130, the second active slider 150, and the second driven slider 140 can all be equipped with processing stations, which is a prior art and will not be described in detail here. In this embodiment, the first active slider 120 is arranged on the first nut 211, and the second active slider 150 is arranged on the second nut 221. Then, rotating the screw rod 200 can drive the first active slider 120 and the second active slider 150 to move toward or away from each other, and then the first active slider 120 drives the first driven slider 130 to slide using the first linkage mechanism 300, and the second active slider 150 drives the second driven slider 140 to slide using the second linkage mechanism 400. Then, one screw rod 200 can drive the first active slider 120, the first driven slider 130, the second active slider 150, and the second driven slider 140 to slide, thereby realizing the function of multiple workstations moving together, and the structure is simple. The movement of multiple workstations can be controlled by only controlling the screw rod 200 to rotate forward or reverse, with fast response speed and more convenient use.

[0034] It should be noted that the first nut 211 and the second nut 221 are both common ball nuts on the market, which are prior art and will not be described in detail here.

[0035] In some embodiments of the present invention, reference Figure 2 The first linkage mechanism 300 includes a first hinge rod 310 and a first connecting rod 320. The first active slider 120 is hinged to one end of the first hinge rod 310, the first connecting rod 320 is hinged to the first driven slider 130, and the swing end of the first hinge rod 310 is hinged to the swing end of the first connecting rod 320. That is, the first linkage mechanism 300 is a connecting rod mechanism, so that the first active slider 120 can drive the first hinge rod 310 to move when moving, and then drive the first driven slider 130 to move through the first connecting rod 320, so as to achieve the purpose of allowing the first active slider 120 to drive the first driven slider 130 to move.

[0036] In some embodiments of the present invention, reference Figure 2 The second linkage mechanism 400 includes a second hinge rod 410 and a second connecting rod 420. The second active slider 150 is hinged to one end of the second hinge rod 410, the second connecting rod 420 is hinged to the second driven slider 140, and the swing end of the second hinge rod 410 is hinged to the swing end of the second connecting rod 420. That is, the second linkage mechanism 400 is similar in structure to the first linkage mechanism 300. When the second active slider 150 moves, it can drive the first hinge rod 310 to move, and then drive the second driven slider 140 to move through the second connecting rod 420, so as to achieve the purpose of allowing the second active slider 150 to drive the second active slider 150 to move.

[0037] In some embodiments of the present invention, reference Figure 2 The base 100 is provided with a fixed seat 500 located between the first driven slider 130 and the second driven slider 140, and the fixed seat 500 is hinged with the third hinge rod 510. The middle part of the first connecting rod 320 is hinged with the first driven slider 130, and one end of the first connecting rod 320 away from the first hinge rod 310 is hinged with the swing end of the third hinge rod 510. That is, one end of the first connecting rod 320 is hinged with the first hinge rod 310, and the other end is hinged with the third hinge rod 510. The first driven slider 130 is hinged on the first connecting rod 320. When the first active slider 120 moves, the first connecting rod 320 and the third hinge rod 510 will be driven to move through the first hinge rod 310, and then the first driven slider 130 hinged on the first connecting rod 320 will slide, so that the first active slider 120 drives the first driven slider 130 to move.

[0038] In some specific embodiments of the present invention, reference Figure 3The fixing seat 500 is hinged with a fourth hinge rod 520, the middle part of the second connecting rod 420 is hinged with the second driven slider 140, and one end of the second connecting rod 420 away from the second hinge rod 410 is hinged with the swing end of the fourth hinge rod 520. That is, one end of the second connecting rod 420 is hinged with the second hinge rod 410, and the other end is hinged with the fourth hinge rod 520. The second driven slider 140 is hinged on the second connecting rod 420. When the second active slider 150 moves, the second connecting rod 420 and the fourth hinge rod 520 will be driven to move through the second hinge rod 410, and then the second driven slider 140 hinged on the second connecting rod 420 will slide, so that the second active slider 150 drives the second driven slider 140 to move. The third hinge rod 510 and the fourth hinge rod 520 are both hinged on the fixing seat 500 and do not interfere with each other, so that the first driven slider 130 and the second driven slider 140 can slide relatively independently, reduce interference, and make sliding easier.

[0039] In some embodiments of the present invention, reference Figure 2 The middle part of the third hinged rod 510 is hinged to the fixed seat 500 , the middle part of the second connecting rod 420 is hinged to the second driven slider 140 , and one end of the second connecting rod 420 away from the second hinged rod 410 is hinged to one end of the third hinged rod 510 away from the first connecting rod 320 . That is, one end of the third hinged rod 510 is hinged to the first connecting rod 320, and the other end is hinged to the second connecting rod 420. The first active slider 120 drives the third hinged rod 510 to move through the first connecting rod 320, and the second active slider 150 drives the third hinged rod 510 to move through the second connecting rod 420. The first active slider 120 and the second slider drive the third hinged rod 510 to move in the same direction. The movement of the first active slider 120, the first driven slider 130, the second active slider 150, and the second driven slider 140 can be more synchronized, which is convenient for controlling the sliding of the first active slider 120, the first driven slider 130, the second active slider 150, and the second driven slider 140, and also convenient for controlling the displacement of the first driven slider 130 and the second driven slider 140.

[0040] In some embodiments of the present invention, reference Figure 2 , Figure 3, the hinge center of the first active slider 120, the hinge center of the first driven slider 130, the hinge center of the fixed seat 500, the hinge center of the second driven slider 140, and the hinge center of the second active slider 150 are on the same straight line, and the straight line is parallel to the length direction of the screw rod 200. That is, according to the principle of similar triangles, the distance between the hinge center of the first active slider 120 and the hinge center of the first driven slider 130, the distance between the hinge center of the first driven slider 130 and the hinge center of the fixed seat 500, the distance between the hinge center of the second driven slider 140 and the hinge center of the fixed seat 500, and the distance between the hinge center of the second active slider 150 and the hinge center of the second driven slider 140 are proportional. On the basis of the above, the lengths of the first connecting rod 320 and the second connecting rod 420 are matched, the lengths of the first hinge rod 310 and the second hinge rod 410 are matched, and the hinge center of the third hinge rod 510 and the fixed seat 500 is located at the center of the third hinge rod 510. That is, the length of the first connecting rod 320 is equal to the length of the second connecting rod 420, the length of the first hinge rod 310 is equal to the length of the second hinge rod 410, and the distances from the hinge centers of both ends of the third hinge rod 510 to the fixed seat 500 are equal, that is, the distance between the hinge center of the first active slider 120 and the hinge center of the first driven slider 130 is equal to the distance between the hinge center of the second active slider 150 and the hinge center of the second driven slider 140, and the distance between the hinge center of the first driven slider 130 and the hinge center of the fixed seat 500 is equal to the distance between the hinge center of the second driven slider 140 and the hinge center of the fixed seat 500.

[0041] On the basis of the above, refer to Figure 2 , Figure 3 , the first active slider 120, the first driven slider 130, the second driven slider 140, and the second active slider 150 are distributed on the slide rail 110 at equal intervals in sequence. The distance between the hinge center of the first active slider 120 and the hinge center of the first driven slider 130, the distance between the hinge center of the second active slider 150 and the hinge center of the second driven slider 140, and the distance between the hinge center of the second driven slider 140 and the hinge center of the first driven slider 130 are equal, that is, the length of the third hinge rod 510 is equal to the length of the first hinge rod 310 and the second hinge rod 410, that is, when the first active slider 120 and the second active slider 150 move toward or away from each other, the first active slider 120, the first driven slider 130, the second driven slider 140, and the second active slider 150 are evenly distributed on the slide rail 110, so as to facilitate the control of the distance between the first active slider 120, the first driven slider 130, the second driven slider 140, and the second active slider 150.

[0042] In some embodiments of the present invention, reference Figure 4There are multiple first driven sliders 130, multiple second driven sliders 140, two adjacent first driven sliders 130 are connected by a third linkage mechanism 600, and two adjacent second driven sliders 140 are connected by a fourth linkage mechanism 700. The third linkage mechanism 600 is a connecting rod mechanism, and the fourth linkage mechanism 700 is also a connecting rod mechanism. The third linkage mechanism 600 is similar in structure to the first linkage mechanism 300, and the fourth linkage mechanism 700 is similar in structure to the second linkage mechanism 400. Specifically, refer to Figure 4 , each first driven slider 130 is provided with a first connecting rod 320, and two adjacent first connecting rods 320 are hinged in sequence. Each second driven slider 140 is provided with a second connecting rod 420, and two adjacent second connecting rods 420 are hinged in sequence. That is, the third linkage mechanism 600 is the first connecting rod 320, and the fourth linkage mechanism 700 is the second connecting rod 420. The first connecting rod 320 adjacent to the first hinged rod 310 is hinged to the first hinged rod 310, and the second connecting rod 420 adjacent to the second hinged rod 410 is hinged to the second hinged rod 410. When the first active slider 120 moves, it can drive all the first driven sliders 130 to move through the transmission of the first hinged rod 310 and the first connecting rod 320. Similarly, when the second active slider 150 moves, it can drive all the second driven sliders 140 to move, thereby achieving the purpose of controlling the movement of multiple workstations.

[0043] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0044] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

[0045] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A multi-station linear module, characterized in that: include: A base (100) has a slide rail (110), wherein the slide rail (110) is slidably connected with a first active slider (120), a first driven slider (130), a second driven slider (140), and a second active slider (150) in sequence; a screw rod (200) is arranged on the base (100) and its length direction is parallel to the slide rail (110), wherein the screw rod (200) has a positive thread section (210) and a negative thread section (220), wherein the positive thread section (210) is threadedly connected with a first nut (211), and wherein the negative thread section (220) is threadedly connected with a second nut (221), wherein the first active slider (120) is arranged on the first nut (211), and wherein the second active slider (150) is arranged on the first nut (211); The first active slider (120) is connected to the first driven slider (130) via a first linkage mechanism (300), and the second active slider (150) is connected to the second driven slider (140) via a second linkage mechanism (400); the first linkage mechanism (300) comprises a first hinge rod (310) and a first connecting rod (320); the first active slider (120) is hinged to one end of the first hinge rod (310), and the first connecting rod (320) is hinged to the first driven slider (130). The first hinge rod (310) is hinged to the swing end of the first connecting rod (320); the second linkage mechanism (400) includes a second hinge rod (410) and a second connecting rod (420); the second active slider (150) is hinged to one end of the second hinge rod (410); the second connecting rod (420) is hinged to the second driven slider (140); the swing end of the second hinge rod (410) is hinged to the swing end of the second connecting rod (420); the base (100) is provided with A fixed seat (500) is located between the first driven slider (130) and the second driven slider (140), the fixed seat (500) is hinged with a third hinged rod (510), the middle part of the first connecting rod (320) is hinged with the first driven slider (130), and one end of the first connecting rod (320) facing away from the first hinged rod (310) is hinged with a swing end of the third hinged rod (510); the fixed seat (500) is hinged with a fourth hinged rod (520), the middle part of the second connecting rod (420) is hinged with the swing end of the third hinged rod (510); The second driven slider (140) is hinged, and one end of the second connecting rod (420) facing away from the second hinged rod (410) is hinged to the swing end of the fourth hinged rod (520); the middle part of the third hinged rod (510) is hinged to the fixed seat (500), the middle part of the second connecting rod (420) is hinged to the second driven slider (140), and one end of the second connecting rod (420) facing away from the second hinged rod (410) is hinged to one end of the third hinged rod (510) facing away from the first connecting rod (320).

2. A multi-station linear module according to claim 1, characterized in that: The hinge center of the first active slider (120), the hinge center of the first driven slider (130), the hinge center of the fixed seat (500), the hinge center of the second driven slider (140), and the hinge center of the second active slider (150) are on the same straight line.

3. A multi-station linear module according to claim 2, characterized in that: The lengths of the first connecting rod (320) and the second connecting rod (420) are matched, the lengths of the first hinged rod (310) and the second hinged rod (410) are matched, and the hinge center of the fixing seat (500) is located at the center of the third hinged rod (510).

4. A multi-station linear module according to claim 3, characterized in that: The first active slider (120), the first driven slider (130), the second driven slider (140), and the second active slider (150) are sequentially distributed on the slide rail (110) at equal intervals.

5. The multi-station linear module according to claim 1, characterized in that: There are a plurality of first driven sliders (130), and a plurality of second driven sliders (140). Two adjacent first driven sliders (130) are connected via a third linkage mechanism (600), and two adjacent second driven sliders (140) are connected via a fourth linkage mechanism (700).

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