CN112897043B

CN112897043B - Snatch mechanism and PCBA snatchs mechanism

Info

Publication number: CN112897043B
Application number: CN202110072096.2A
Authority: CN
Inventors: 王志兵; 刘向东
Original assignee: Hangzhou Ev Tech Co ltd
Current assignee: Zhejiang Fute Technology Co ltd
Priority date: 2021-01-19
Filing date: 2021-01-19
Publication date: 2023-02-28
Anticipated expiration: 2041-01-19
Also published as: CN112897043A

Abstract

The application provides a snatch mechanism and PCBA snatchs mechanism relates to mechanical technical field, includes: a gripper and a push rod; the inner hollow part of the hand grip is hollow, and the inner hollow part of the hand grip is in fit contact with the push rod; when the push rod is lifted, the hand grip is extruded outwards through the convex part at the bottom of the push rod, and the hand grip is controlled to be in an expanded state through extruding outwards, so that the hand grip grips a target object; when the push rod is put down, the gripper is in a contraction state, so that the gripper puts down a target object, and the technical problem that the object is limited by an operation space in the processes of installation, disassembly and the like is solved.

Description

Snatch mechanism and PCBA snatchs mechanism

Technical Field

The application relates to the technical field of machinery, especially, relate to a snatch mechanism and PCBA snatchs mechanism.

Background

PCBA (Printed Circuit Board Assembly) refers to a PCB (Printed Circuit Board) that is Mounted on a Surface Mount Technology (SMT) Board or is subjected to the entire manufacturing process of a DIP package.

After the PCBA is assembled, the PCBA must be mounted in the machine, or the PCBA mounted in the machine must be removed to perform maintenance and inspection of the machine. At present, the mode of manual work gripping PCBA with the hand is usually adopted and is installed and dismantled, but this process can be limited by the inside installation space size of machine, if the installation space is less, can lead to processes such as subassembly installation, dismantlement to go on difficultly.

Disclosure of Invention

The utility model provides a snatch mechanism and PCBA snatchs mechanism to alleviate the object and receive the technical problem in operating space at in-process such as installation, dismantlement.

In a first aspect, an embodiment of the present application provides a grabbing mechanism, including: a gripper and a push rod;

the inner part of the hand grip is hollow, and the hollow part of the inner part of the hand grip is in fit contact with the push rod;

when the push rod is lifted, the gripper is extruded outwards through the convex part at the bottom of the push rod, and the gripper is controlled to be in an expanded state through extruding the gripper outwards, so that the gripper grips a target object;

and when the push rod is put down, the hand grip is in a contracted state, so that the hand grip can put down the target object.

With reference to the first aspect, embodiments of the present application provide a first possible implementation manner of the first aspect, wherein grooves are provided at an outer surface of a bottom of the hand grip to increase a friction force of contact between the hand grip and the target object.

With reference to the first aspect, an embodiment of the present application provides a second possible implementation manner of the first aspect, wherein a buckle is disposed on a bottom of the hand grip, so that the target object is clamped when the hand grip is in the expanded state.

With reference to the first aspect, this application provides a third possible implementation manner of the first aspect, where a contact surface between an outer portion of the gripper and the push rod is in a shape of a horn.

With reference to the first aspect, the present application provides a fourth possible implementation manner of the first aspect, wherein a hollow portion of the hand grip is provided with a sawtooth-shaped groove to match contact between the hollow portion and the push rod.

With reference to the first aspect, an embodiment of the present application provides a fifth possible implementation manner of the first aspect, where the method further includes: the travel switch comprises a spring, a travel column, an elastic sheet of the travel switch and an indicator light; the stroke column is arranged on the push rod; the spring is arranged at the top of the push rod;

when the push rod is lifted, the spring contracts to enable the stroke column to prop against the elastic sheet of the stroke switch, and when the elastic sheet displaces to a degree exceeding a preset degree, the stroke switch controls the indicator lamp to light up to prompt the gripper to grip the target object.

With reference to the first aspect, in a sixth possible implementation manner of the first aspect, in the process of putting down the target object, the push rod moves downward under the action of the elastic force of the spring, so that the trumpet-shaped trepanning of the bottom inner cavity of the push rod presses the trumpet-shaped outer surface of the gripper, and the gripper retracts when pressing the trumpet-shaped outer surface of the gripper, so that the gripper puts down the target object;

and the travel switch controls the indicator lamp to be turned off in the process of putting down the push rod.

With reference to the first aspect, an embodiment of the present application provides a seventh possible implementation manner of the first aspect, where the method further includes: a cover plate and a base;

the cover plate and the base are respectively provided with a plurality of through holes, the gripper is provided with a plurality of threaded holes which are the same as the through holes in number, and the cover plate, the base and the gripper are fixedly connected through a plurality of screws, the through holes and the threaded holes.

In combination with the first aspect, an embodiment of the present application provides an eighth possible implementation manner of the first aspect, wherein at least one spring is disposed at a matching position of the push rod and the base, and the spring is used to control a grabbing force of the hand grip and control a dropping process of the hand grip.

In a second aspect, an embodiment of the present application further provides a PCBA grabbing mechanism, including: a PCBA assembly and a gripping mechanism as described in the first aspect;

the hand grips in an expanded state are used for gripping the PCBA component when a push rod in the gripping mechanism is lifted;

the hand grips, which are in a retracted state when the pusher rod is lowered, are used to lower the PCBA assembly.

The technical scheme provided by the embodiment of the application has the following beneficial effects that:

the mechanism and PCBA snatch mechanism that this application embodiment provided include: the inner hollow part of the gripper is hollow, the inner hollow part of the gripper is in fit contact with the push rod, the gripper is extruded outwards through the bottom protruding part of the push rod when the push rod is lifted, the gripper is controlled to be in an expanded state through extruding the gripper outwards so as to grip a target object, and the gripper is in a contracted state when the push rod is put down so as to put down the target object. In this scheme, the push rod of control snatch mechanism can make the tongs be the shrink or expand state when putting down or lifting to the realization is put down or is snatched the process of target object in limited operating space, has alleviated the technical problem that the object is in operating space's in-process such as installation, dismantlement.

Drawings

In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings needed to be used in the detailed description of the present application or the prior art description will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural diagram of a grasping mechanism according to an embodiment of the present disclosure;

FIG. 2 is a side view of the grasping mechanism of FIG. 1;

fig. 3 is another schematic structural diagram of a gripping mechanism according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a PCBA gripping mechanism according to an embodiment of the present application.

Icon: 1-hand grip, 2-cover plate, 3-indicator light, 4-limit switch, 5-spring, 6-battery pack, 7-base, 8-push rod, 9-another spring, 10-M3 screw and 11-another hand grip.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the present application will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

The terms "comprising" and "having," and any variations thereof, as referred to in the embodiments of the present application, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

During maintenance and inspection of the machine, it is sometimes necessary to disassemble the assembled components. At present, the assembly is usually installed and disassembled by manually grabbing the assembly by hands, the process is limited by the size of the installation space inside the machine, if the installation space is smaller, the assembly installation and disassembly process is difficult, and the production cost of enterprises is increased.

Based on this, the technical problem that the object is restricted by operating space in the processes of installation, disassembly and the like is alleviated by the grabbing mechanism and the PCBA grabbing mechanism provided by the embodiment of the application.

For the understanding of the present embodiment, a detailed description will be given of a grasping mechanism disclosed in the embodiments of the present application.

Fig. 1 is a schematic structural diagram of a grasping mechanism according to an embodiment of the present application. As shown in fig. 1, the mechanism includes: the hand grips (1 and 11) and the push rod 8, wherein the inner part of the hand grip is hollow, and the inner hollow part of the hand grip is in fit contact with the push rod. When the push rod is lifted, the hand grip is extruded outwards through the convex part at the bottom of the push rod, and the hand grip is controlled to be in an expanded state through the outward extrusion, so that the hand grip grips the target object; when the push rod is put down, the gripper is in a contraction state, so that the gripper puts down the target object.

Therefore, when the push rod is controlled to be put down or lifted up, the hand grips are in a contracting or expanding state, the process that the grabbing mechanism puts down or grabs a target object is achieved, and the flexibility and the practicability of the grabbing mechanism in different operation spaces are improved.

Embodiments of the invention are further described below.

In some embodiments, the friction between the contact surfaces is increased by providing certain grooves at the surfaces. As one example, grooves may be provided at the bottom outer surface of the fingers to increase the frictional force of contact between the fingers and the target object.

For example, as shown in FIG. 1, the provision of a dense annular groove in the bottom of the fingers may be used to increase the friction of the fingers in contact with the target object.

In some embodiments, the target object is prevented from falling off by providing a catch on the bottom of the grip. As an example, a catch is provided on the bottom of the grip to catch the target object when the grip is in the expanded state.

The clamp is arranged at the bottom of the gripper, so that the target object can be clamped to prevent the target object from falling, and the stability and the practicability of the gripping mechanism in the use process are improved.

In some embodiments, the outer portion of the finger grip is shaped to contact the push rod. As an example, the contact surface of the outer portion of the gripper and the push rod is flared. The contact surface of the outer part of the gripper and the push rod is arranged to be trumpet-shaped, so that a worker can control the gripping mechanism more labor-saving, and the working efficiency of an enterprise is improved.

In some embodiments, as shown in FIG. 2, the contact between the finger grip and the push rod may be matched by providing a groove configuration. As an example, the hollow portion of the grip is provided with a saw-toothed groove to match the contact between the hollow portion and the push rod.

It should be noted that the inner portion of the hand grip is hollow and the hollow portion thereof is provided with a saw-tooth groove, so that the hollow portion of the hand grip is in fit contact with the push rod. When the push rod is lifted, the hand grips are expanded, and the object grabbing process is achieved.

In some embodiments, the grabbing force of the hand grab is controlled by arranging a spring, and the grabbing state of the object is indicated by using an indicator light. As an example, the mechanism further comprises: a spring 5, a travel column, a spring sheet of a travel switch (a limit switch 4) and an indicator lamp 3; the stroke column is arranged on the push rod; the spring is arranged at the top of the push rod; as shown in fig. 3, the spring contracts during the lifting process of the push rod, so that the stroke post is pressed against the elastic sheet of the stroke switch, and when the elastic sheet displaces to a degree exceeding a preset degree, the stroke switch controls the indicator lamp to light up to prompt the gripper to grip the target object.

In addition, as shown in fig. 1, a battery pack 6 is also arranged in the grabbing mechanism and can provide power for an indicator light.

Set up the spring through top and 7 cooperation departments of base at the push rod, can control the dynamics of snatching of tongs to realize the swift resilience of tongs, utilize the grasping state of pilot lamp suggestion tongs simultaneously, avoid receiving operating space's restriction, improved the installation effectiveness of object.

Based on the above, the movement of the push rod is controlled by the resilience action of the spring, so that the gripper is in a contraction state, the target object is put down, and the indicator light is turned off. Illustratively, in the process of putting down the target object, the push rod moves towards the lower part of the push rod under the elastic force of the spring, so that the horn-shaped sleeve hole of the inner cavity at the bottom of the push rod extrudes the horn-shaped outer surface of the gripper, and the gripper contracts when the horn-shaped outer surface of the gripper is extruded, so that the gripper puts down the target object; the travel switch controls the indicator lamp to be turned off in the process of putting down the push rod.

Therefore, the movement of the push rod can be controlled by utilizing the flexibility of the spring, so that the gripper is in a contracting or expanding state, the gripper is further controlled to put down or grip a target object, the installation efficiency of the object is improved, and the working strength of workers is reduced.

In some embodiments, the cover, base 7 and fingers of the mechanism are fixedly connected by screws. As an example, the mechanism further comprises: a cover plate 2 and a base 7; the cover plate and the base are respectively provided with a plurality of through holes, the gripper is provided with a plurality of threaded holes with the same number as the through holes, and the cover plate, the base and the gripper are fixedly connected through a plurality of screws, the through holes and the threaded holes.

For example, as shown in fig. 1, the cover plate and the base are respectively provided with four through holes with a diameter of 3.2, the gripper is provided with four M3 threaded holes, and the cover plate, the base and the gripper are fixedly connected through 4M 3 screws 10, so that the stability and the durability of the mechanism are enhanced.

In some embodiments, a certain number of springs may be provided to control the gripping force of the gripper according to actual conditions. As an example, at least one spring 9 is arranged at the matching position of the push rod and the base, and the spring 9 is used for controlling the grabbing force of the hand grab and controlling the releasing process of the hand grab.

Therefore, the number of the springs can be set according to actual requirements, the grabbing force of the hand grab is adjusted to match the process of grabbing or putting down the target object by the hand grab, and the practicability and flexibility of the mechanism are improved.

The PCBA that this application embodiment provided snatchs mechanism, as shown in fig. 4, this mechanism includes: a PCBA assembly 401 and a gripping mechanism 402 as provided in the above embodiments. The gripping device is used for gripping the PCBA component, and the gripping device is in an expanded state when a push rod in the gripping mechanism is lifted; the fingers, which are in a retracted state when the ram is lowered, are used to lower the PCBA assembly.

The PCBA grabbing mechanism provided by the embodiment of the application has the same technical characteristics as the grabbing mechanism provided by the embodiment, so that the same technical problems can be solved, and the same technical effects are achieved.

In addition, in the description of the embodiments of the present application, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. 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.

The controller in the embodiments of the present application may be in the form of a processor, which may be an integrated circuit chip having signal processing capabilities. In implementation, the functions described above may be implemented by integrated logic circuits of hardware or instructions in the form of software in a processor. The Processor may be a general-purpose Processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like; the Integrated Circuit may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various functional and logical block diagrams disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The devices, apparatuses, circuits, and systems disclosed in this application can be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may be located in ram, flash, rom, prom, or eprom, registers, etc. as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and combines hardware thereof to realize the functions.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus and system, etc., may be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions when actually implemented, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or units through some communication interfaces, and may be in an electrical, mechanical or other form.

For another example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments provided in the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute the functions of the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present application, and are used for illustrating the technical solutions of the present application, but not limiting the same, and the scope of the present application is not limited thereto, and although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope disclosed in the present application; such modifications, changes or substitutions do not depart from the scope of the embodiments of the present application. Are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A grasping mechanism, comprising: a gripper and a push rod;

when the push rod is put down, the hand grip is in a contraction state, so that the hand grip can put down the target object;

the contact surface between the outer part of the hand grip and the push rod is trumpet-shaped;

further comprising: the travel switch comprises a spring, a travel column, a spring sheet of the travel switch and an indicator light; the stroke column is arranged on the push rod; the spring is arranged at the top of the push rod;

when the push rod is lifted, the spring contracts to enable the stroke column to prop against the elastic sheet of the stroke switch, and when the elastic sheet displaces to a degree exceeding a preset degree, the stroke switch controls the indicator lamp to light up to prompt the gripper to grip the target object;

in the process of putting down the target object, the push rod moves towards the lower part of the push rod under the elastic force of the spring, so that the horn-shaped sleeve hole in the inner cavity at the bottom of the push rod extrudes the horn-shaped outer surface of the gripper, and the gripper contracts when the horn-shaped outer surface of the gripper is extruded, so that the gripper puts down the target object;

2. The grasping mechanism according to claim 1, wherein a groove is provided at a bottom outer surface of the hand grip to increase a frictional force of contact between the hand grip and the target object.

3. The grasping mechanism according to claim 1, wherein a catch is provided on a bottom of the hand grip to retain the target object when the hand grip is in the expanded state.

4. The grasping mechanism according to claim 1, wherein the hollow portion of the hand grip is provided with a saw-tooth shaped groove to match contact between the hollow portion and the push rod.

5. The grasping mechanism according to claim 1, further comprising: a cover plate and a base;

6. The grasping mechanism according to claim 5, wherein at least one spring is provided at the position where the push rod is engaged with the base, and the spring is used for controlling the grasping force of the hand grip and controlling the lowering process of the hand grip.

7. A PCBA snatchs mechanism, its characterized in that includes: a PCBA assembly and the grasping mechanism of any one of claims 1-6;

the gripping handle in an expanded state is used for gripping the PCBA component when a push rod in the gripping mechanism is lifted;