CN216803187U

CN216803187U - Pitch-changing mechanism

Info

Publication number: CN216803187U
Application number: CN202220563274.1U
Authority: CN
Inventors: 廖敏基
Original assignee: Sano Medical Intelligent Technology Shenzhen Co ltd
Current assignee: Sano Medical Intelligent Technology Shenzhen Co ltd
Priority date: 2022-03-12
Filing date: 2022-03-12
Publication date: 2022-06-24
Anticipated expiration: 2032-03-12

Abstract

The utility model provides a distance changing mechanism which comprises a slide rail, a plurality of jigs and a driving device, wherein positioning columns are arranged on the jigs and used for fixing products, the jigs are arranged on the slide rail in a sliding mode and move on the slide rail under the driving of the driving device, two adjacent jigs are connected through a connecting rod, at least one of the two adjacent jigs can slide relative to the connecting rod, the two adjacent jigs slide together through the pulling of the connecting rod when being far away from each other, so that the jigs can meet the requirement of distance changing under the driving of the driving device, and the distance between the adjacent jigs can be close to or far away from each other along with the driving of the driving device and the action of the connecting rod, so that the applicability of the distance changing mechanism is stronger.

Description

Pitch-changing mechanism

Technical Field

The utility model relates to the technical field of medical instrument processing, in particular to a pitch-changing mechanism for producing and processing medical products.

Background

The distance between a plurality of stations can once only be adjusted through mechanical control messenger to the displacement mechanism, thereby promote production machining efficiency, in some product processing engineering, the distance between each tool that needs the displacement mechanism also can change, with the processing demand of cooperation next process, among the prior art, the displacement mechanism has crossing connecting rod displacement mechanism and slide rail formula displacement mechanism, wherein, crossing connecting rod displacement mechanism has the structure wearing and tearing very fast, the bits of production can be loud the cleanliness factor of product, and the slide rail formula can only whole displacement, lead to the interval between a plurality of tools on the displacement mechanism and can not adjust, can't satisfy the processing demand of next process.

SUMMERY OF THE UTILITY MODEL

In view of this, it is necessary to provide a pitch varying mechanism with adjustable spacing between a plurality of jigs, so as to improve the applicability of the pitch varying mechanism.

The utility model provides a variable pitch mechanism which comprises a slide rail, a plurality of jigs and a driving device, wherein positioning columns are arranged on the jigs, the jigs are arranged on the slide rail in a sliding manner and move on the slide rail under the driving of the driving device, two adjacent jigs are connected through a connecting rod, at least one of the two adjacent jigs can slide relative to the connecting rod, and the two adjacent jigs can slide together by being pulled through the connecting rod when being away from each other.

Furthermore, the connecting rod includes stiff end and expansion end, the stiff end is fixed one on the tool, the expansion end movably limits on one adjacent on the tool.

Furthermore, the jig is further provided with a yielding hole, and the movable end is right opposite to the yielding hole and can extend into the yielding hole.

Furthermore, both ends of the connecting rod are movably limited on the two adjacent jigs.

Furthermore, the positioning column is a suction nozzle.

Furthermore, the slide rail is provided with many, many the slide rail interval certain distance sets up, and per two slide rail is along the central line symmetry and is constituteed a slide rail group, and adjacent two the tool is located the difference on the slide rail group, and adjacent be equipped with two between the tool the connecting rod, wherein, one the position of connecting rod is just to one the position setting of slide rail.

Further, the driving device is connected to one side of the plurality of jigs and moves along the central line to drive the plurality of jigs to move together.

Furthermore, the driving device comprises a sliding seat, a connecting rod and an elastic piece, one end of the connecting rod is connected with the jig, the other end of the connecting rod is movably limited on the sliding seat, and the elastic piece is arranged on the connecting rod and positioned on one side of the sliding seat away from the jig; or the elastic piece is arranged between the sliding seat and the jig.

Further, the driving device is a rodless cylinder.

Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the positioning columns are arranged on the plurality of jigs and used for fixing products, the plurality of jigs are arranged on the slide rail in a sliding manner and move on the slide rail under the driving of the driving device, the two adjacent jigs are connected through the connecting rod, at least one of the two adjacent jigs can slide relative to the connecting rod, and the two adjacent jigs can slide together by pulling the connecting rod when being away from each other, so that the plurality of jigs can meet the requirement of variable distance under the driving of the driving device, and the distance between the adjacent jigs can be close to or away from each other along with the driving of the driving device and the action of the connecting rod, so that the applicability of the variable distance mechanism is stronger.

Drawings

FIG. 1 is a general schematic diagram of an embodiment of the present invention.

Fig. 2 is another perspective overall view of the embodiment of the present invention.

FIG. 3 is a schematic view of an embodiment of the connecting rod of the present invention.

FIG. 4 is a schematic view of the connection between the jig and the connecting rod according to the present invention.

Fig. 5 is a schematic structural view of the jig of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention. It is to be understood that the drawings are provided solely for the purposes of reference and illustration and are not intended as a definition of the limits of the utility model. The connection relationships shown in the drawings are for clarity of description only and do not limit the manner of connection.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It should also be noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; either mechanically or electrically, and may be internal to both elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

It should be noted that in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1-2, the present invention provides a pitch-varying mechanism, which includes a mounting base 10, a slide rail set 20, a plurality of jigs and a driving device 40. The slide rail set 20 is arranged on the mounting base 10, the plurality of jigs are arranged on the slide rail set 20 in a sliding manner, the adjacent jigs 31 are movably connected together through a connecting rod 50, and the driving device 40 is arranged on one side of the plurality of jigs and drives the plurality of jigs to slide on the slide rail set 20 for distance changing.

The slide rail group 20 is provided with at least two groups, each group of the slide rail group 20 comprises two slide rails 21 which are parallel to each other and symmetrical along a central line A, and the jigs 31 are connected with the slide rail group 20 in a sliding manner through sliders 32. Each of the jigs 31 is slidably connected to the two slide rails 21 of one of the slide rail sets 20.

Two adjacent jigs 31 are slidably disposed on different slide rail sets 20.

In an embodiment, two connecting rods 50 are disposed between two adjacent jigs 31, and a position of one connecting rod 50 is correspondingly disposed right above one sliding rail 21. When the driving device 40 drives the plurality of jigs 31 to move, the force transmitted by the connecting rod 50 between the adjacent jigs 31 is consistent with the force position of the jig 31 sliding on the slide rail 21, so that the problem that the adjacent jigs 31 slide unsmoothly due to the dislocation of the sliding direction and the transmission stress direction in the sliding process because the position of the connecting rod 50 and the position of the slide rail 21 are arranged in a staggered manner is avoided.

At least one of the two adjacent jigs 31 can slide relative to the connecting rod 50, and the two adjacent jigs 31 can slide together by being pulled by the connecting rod 50 when being away from each other.

Referring to fig. 3-4, in one embodiment, the connecting rod 50 includes a fixed end 51 and a movable end 52, the fixed end 51 is fixed on one of the jigs 31, and the movable end 52 is movably limited on an adjacent jig 31.

Specifically, the fixed end 51 is fixed on one of the jigs 31, a through hole 311 is formed at a position where the adjacent jig 31 faces the connecting rod 50, and the movable end 52 passes through the through hole 311 and is limited by a limiting member 521, so that the adjacent jig 31 can be close to or away from the jig 31 corresponding to the fixed end 51 under the limitation of the connecting rod 50. The position of the limiting member 521 on the connecting rod 50 is adjustable, so as to meet the changing requirements of different distances.

In another embodiment, both ends of the connecting rod 50 are movably limited on two adjacent jigs 31. That is, the through holes 311 are disposed at positions where the two adjacent jigs 31 face the connecting rod 50, and two ends of the connecting rod 50 respectively penetrate through the through holes 311 of the two adjacent jigs 31 and are limited by the limiting member 521. The position of the limiting member 521 on the connecting rod 50 is adjustable, so as to meet the changing requirements of different distances.

In order to meet different distance-changing requirements, the jig 31 is further provided with a yielding hole 312, wherein the movable end 52 faces the yielding hole 312 and can extend into the yielding hole 312. Because the length of connecting rod 50 is longer, works as a plurality of jigs are close to each other or when laminating each other, through setting up hole 312 of stepping down, can make connecting rod 50 stretches into hole 312 of stepping down forms the stepping down to avoid because of connecting rod 50's interference influence is adjacent distance that is close to each other between the tool 31.

Referring to fig. 1-2, the driving device 40 is connected to one side of the plurality of jigs and moves along the center line a to drive the plurality of jigs to move together.

By arranging the driving path of the driving device 40 along the central line a, when the driving device 40 drives the plurality of jigs to approach, the power of the driving device 40 driving the plurality of jigs 31 to slide on the slide rail set 20 is uniform; when the driving device 40 drives the plurality of jigs to be away from, the connecting rod 50 between the adjacent jigs 31 is driven by the driving device 40 to drive the plurality of jigs 31 to slide on the slide rail group 20 with uniform force, so that the plurality of jigs are stressed more uniformly in the distance change of the slide rail group 20, and the phenomenon that the distance change is not smooth due to unbalanced stress in the distance change process is avoided.

The driving device 40 comprises a power assembly 41, a sliding seat 42, a connecting rod 43 and an elastic piece 44, the power assembly 41 drives the sliding seat 42 to slide along the central line a, one end of the connecting rod 43 is connected with the jig 31, the other end of the connecting rod 43 is movably limited on the sliding seat 42, and the elastic piece 44 is arranged on the connecting rod 43 and used for buffering the driving device 40 when the plurality of jigs are driven to change the distance.

In one embodiment, the elastic element 44 is disposed on the connecting rod 43 and is located on a side of the sliding base 42 away from the plurality of jigs.

In another embodiment, the elastic member 44 is disposed between the sliding base 42 and the plurality of jigs.

Through the arrangement of the elastic piece 44, when the driving device 40 drives the plurality of jigs to change the distance, the sliding seat 42 and the plurality of jigs can be buffered, so that the influence on the use effect of the distance changing mechanism caused by the change of the precision of the distance changing mechanism due to the overlarge power of the driving device 40 is avoided.

It should be noted that: the driving device 40 may be a rodless cylinder, a telescopic shaft, a motor, or the like, and preferably, in this embodiment, the driving device 40 employs a rodless cylinder, so that the space occupied by the pitch varying mechanism is lower, and more space can be reserved for maintenance or installation of other structures.

Referring to fig. 5, positioning columns 33 are disposed on the jigs 31, and the positioning columns 33 are used for positioning products. Specifically, each of the jigs 31 is provided with a plurality of positioning columns 33. In some embodiments, each of the jigs 31 is provided with four positioning pillars 33, and the four positioning pillars 33 are uniformly distributed on the jig 31 along the central line a. The two positioning columns 33 on the same side of the center line a are used for fixing a group of products.

The jig 31 includes a connecting portion 313 and a bearing portion 314, the bearing portion 314 is disposed above the connecting portion 313, the connecting rod 50 is connected to the connecting portion 313, and the positioning post 33 is disposed on the bearing portion 314.

In one embodiment, the bearing portion 314 is a hollow structure, the positioning column 33 is a suction nozzle, the suction nozzle is communicated with the bearing portion 314, and then an external air source is communicated with the bearing portion 314, so that the positioning column 33 can fix the product by vacuum suction.

Wherein, the vacuum suction mode can be that the suction nozzle directly contacts with the product for suction; the suction nozzle can also be matched with a product to form a negative pressure environment to adsorb the product, and relatively speaking, the mode is more suitable for the product with higher requirement on surface cleanliness.

The use method is as follows: the distance between two adjacent jigs 31 is set by adjusting the connecting rod 50, and the driving device 40 drives the jigs to enable the jigs to approach or separate from each other on the slide rail set 20, so that the distance change is realized. Throughout the description and claims of this application, the words "comprise/comprises" and the words "have/includes" and variations of these are used to specify the presence of stated features, values, steps or components but do not preclude the presence or addition of one or more other features, values, steps, components or groups thereof.

Some features of the utility model, which are, for clarity, described in the context of separate embodiments, may also be provided in combination in a single embodiment. Conversely, certain features of the utility model, which are, for brevity, described in the context of a single embodiment, may also be provided separately or in any suitable combination in different embodiments.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A distance changing mechanism is characterized by comprising a slide rail, a plurality of jigs and a driving device, wherein positioning columns are arranged on the jigs, the jigs are arranged on the slide rail in a sliding mode and move on the slide rail under the driving of the driving device, every two adjacent jigs are connected through a connecting rod, at least one of every two adjacent jigs can slide relative to the corresponding connecting rod, and every two adjacent jigs can slide together through the pulling of the corresponding connecting rod when being away from each other.

2. The mechanism of claim 1, wherein said link comprises a fixed end and a movable end, said fixed end being fixed to one of said jigs, and said movable end being movably constrained to an adjacent one of said jigs.

3. The distance varying mechanism according to claim 2, wherein the jig further has a hole for providing a distance, and the movable end faces the hole for providing a distance and can extend into the hole for providing a distance.

4. The pitch mechanism as claimed in claim 1, wherein both ends of said connecting rod are movably constrained to two adjacent jigs.

5. A pitch mechanism according to claim 1, wherein said positioning post is a suction nozzle.

6. The pitch-changing mechanism according to claim 1, wherein a plurality of said slide rails are provided, a plurality of said slide rails are provided at a certain distance, and every two said slide rails symmetrically form a slide rail set along a central line, two adjacent said jigs are provided on different said slide rail sets, and two said connecting rods are provided between two adjacent said jigs, wherein a position of one said connecting rod is opposite to a position of one said slide rail.

7. The pitch mechanism of claim 6 wherein said drive means is connected to one side of said plurality of jigs and moves along said centerline to drive said plurality of jigs together.

8. The pitch-changing mechanism according to any one of claims 1-7, wherein said driving device comprises a sliding seat, a connecting rod and an elastic member, one end of said connecting rod is connected to said jig, the other end of said connecting rod is movably limited on said sliding seat, said elastic member is arranged on said connecting rod and is located on one side of said sliding seat away from said jig; or the elastic piece is arranged between the sliding seat and the jig.

9. A pitch mechanism according to claim 8, wherein said drive means is a rodless cylinder.