CN111993347B - Dismounting jig suitable for multi-fastener synchronous operation - Google Patents
Dismounting jig suitable for multi-fastener synchronous operation Download PDFInfo
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- CN111993347B CN111993347B CN202010851806.7A CN202010851806A CN111993347B CN 111993347 B CN111993347 B CN 111993347B CN 202010851806 A CN202010851806 A CN 202010851806A CN 111993347 B CN111993347 B CN 111993347B
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 102
- 230000005540 biological transmission Effects 0.000 claims abstract description 65
- 238000007667 floating Methods 0.000 claims description 15
- 238000009434 installation Methods 0.000 description 5
- 230000004308 accommodation Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
Abstract
The invention discloses a dismounting and mounting jig suitable for synchronous operation of multiple fasteners, which comprises a central shell, a driving mechanism arranged in the central shell, a plurality of clamping arms connected to the central shell, clamping heads rotatably arranged at the tail ends of the clamping arms and used for mounting tool bits matched with the corresponding fasteners, and a transmission mechanism arranged in each clamping arm, two ends of the transmission mechanism are respectively connected with the driving mechanism and the clamping heads, and the transmission mechanism is used for transmitting the power of the driving mechanism to the clamping heads. Therefore, the dismounting and mounting jig suitable for the synchronous operation of the multiple fasteners, disclosed by the invention, has the advantages that the power of the driving mechanism in the central shell is transmitted to each clamping head through the transmission mechanism in each clamping arm, so that each clamping head is driven to rotate synchronously, and the screwing operation of the multiple fasteners is further completed simultaneously, so that the dismounting and mounting operation of the server assembly can be conveniently and quickly completed, and the labor intensity of workers is reduced.
Description
Technical Field
The invention relates to the technical field of fasteners, in particular to a dismounting jig suitable for synchronous operation of multiple fasteners.
Background
With the development of the electronic technology in China, more and more electronic devices have been widely used.
Servers are important components in electronic devices, and are devices that provide computing services. Since the server needs to respond to and process the service request, the server generally has the capability of assuming and securing the service. The server is divided into a file server, a database server, an application server, a WEB server and the like according to different service types provided by the server. The main components of the server include a processor, a hard disk, a memory, a system bus, etc., and are similar to a general-purpose computer architecture, but the server is required to have high processing capability, stability, reliability, security, expandability, manageability, etc., because it needs to provide highly reliable services.
In the big data era, a large number of IT devices are centrally located in a data center. These data centers include various types of servers, storage, switches, and a large number of cabinets and other infrastructure. Each type of IT equipment consists of various hardware boards, such as computing modules, memory modules, chassis, fan modules, and the like. Many of the numerous components within the server require installation by fasteners such as screws, rivets, i-bolts, etc. Taking the screw as an example, the different server components have different requirements for installation modes, so the types and the number of the screws are more.
At present, to the dismouting of server subassembly, generally need the manual operation of twisting that accomplishes each screw in turn of operation workman through screwdriver or electric screwdriver, because the numerous and the fastener use amount of server subassembly quantity is huge, lead to operation workman's the amount of labour great, and appear easily under fatigue state that the screw lock is askew, the screw does not lock quality problems such as. Meanwhile, for some fine parts, a plurality of screws are usually required to be dismounted and mounted at the same time, and the pretightening force is required to be released or loaded at the same time, otherwise, the problems of inclination and damage of the parts caused by overlarge local locking pressure or the accidents of local warping and impact of the parts are easily caused.
Therefore, how to realize the screwing operation of a plurality of fasteners at the same time, conveniently and quickly finish the dismounting operation of the server assembly, and reduce the labor intensity of workers is a technical problem faced by technical personnel in the field.
Disclosure of Invention
The invention aims to provide a dismounting and mounting jig suitable for synchronous operation of multiple fasteners, which can realize simultaneous screwing operation of multiple fasteners, conveniently and quickly finish dismounting and mounting operation of a server assembly and reduce labor intensity of workers.
In order to solve the technical problems, the invention provides a disassembly and assembly jig suitable for synchronous operation of multiple fasteners, which comprises a central shell, a driving mechanism arranged in the central shell, a plurality of clamping arms connected to the central shell, clamping heads rotatably arranged at the tail ends of the clamping arms and used for installing tool bits matched with the corresponding fasteners, and a transmission mechanism arranged in each clamping arm, wherein two ends of the transmission mechanism are respectively connected with the driving mechanism and the clamping heads and used for transmitting the power of the driving mechanism to the clamping heads.
Preferably, the cross section of the center housing is circular, and each of the holding arms is connected to the sidewall of the center housing along the radial direction of the center housing.
Preferably, each of the clamp arms is rotatably connected to a side wall of the center housing.
Preferably, each of the gripping arms is a resilient arm.
Preferably, each of the clamping arms is in the same level plane.
Preferably, the driving mechanism is a stepping motor or an electric capstan.
Preferably, an operation button for controlling an operation state of the driving mechanism is provided on a surface of the center housing.
Preferably, the transmission mechanism is a gear transmission assembly.
Preferably, the clamping device further comprises a tensioning adjusting mechanism which is arranged in each clamping arm, is positioned between the driving mechanism and the transmission mechanism and is used for controlling connection and disconnection of the driving mechanism and the transmission mechanism according to the tightening degree of a fastener.
Preferably, the tension adjusting mechanism includes an accommodating chamber connected to a side wall of the clamp arm, a tension spring connected to an inner wall of the accommodating chamber, a rotary handle rotatably disposed on a surface of the accommodating chamber and used for adjusting a tension of the tension spring, and a floating transmission member connected to an end of the tension spring and cooperatively transmitted with the driving mechanism and the transmission mechanism at the same time, and used for disengaging from the cooperative transmission with the driving mechanism when a driving force of the driving mechanism is greater than the tension of the tension spring.
The invention provides a dismounting jig suitable for synchronous operation of multiple fasteners, which mainly comprises a central shell, a driving mechanism, a plurality of clamping arms, a plurality of clamping heads and a plurality of transmission mechanisms. The central shell is the main structure of the dismounting jig and is generally positioned at the central position of the structure. A drive mechanism is disposed within the central housing and is primarily operative to provide a source drive force for the driving rotation of each fastener. Each clamping arm is connected on central casing respectively to outwards extend, and each clamping head sets up respectively on the end of each clamping arm to can carry out rotary motion on the clamping arm, mainly used installation with the tool bit of the fastener adaptation that corresponds at present, so that drive tool bit and fastener synchronous revolution, accomplish the operation of screwing up or unscrewing of fastener. Drive mechanism sets up in each centre gripping arm to drive mechanism's both ends link to each other with actuating mechanism and holding head respectively, mainly used drives power transmission to each holding head with actuating mechanism's source on, makes actuating mechanism can drive each holding head smoothly and carry out synchronous rotary motion, thereby accomplishes the operation of twisting of a plurality of fasteners simultaneously through each holding head. Therefore, the dismounting and mounting jig suitable for synchronous operation of multiple fasteners transmits the power of the driving mechanism in the central shell to each clamping head through the transmission mechanism in each clamping arm, so that each clamping head is driven to rotate synchronously, and screwing operation of multiple fasteners is completed simultaneously, so that dismounting and mounting operation of a server assembly can be completed conveniently and quickly, and labor intensity of workers is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention.
Fig. 2 is a schematic view of the internal structure of the clamp arm shown in fig. 1.
Wherein, in fig. 1-2:
the clamping device comprises a central shell-1, a driving mechanism-2, a clamping arm-3, a clamping head-4, a transmission mechanism-5, an operation key-6 and a tensioning adjusting mechanism-7;
an accommodating cavity-71, a tension spring-72, a rotating handle-73 and a floating transmission piece-74.
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 given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic overall structure diagram of an embodiment of the present invention.
In a specific embodiment provided by the invention, the dismounting jig suitable for multi-fastener synchronous operation mainly comprises a central shell 1, a driving mechanism 2, a plurality of clamping arms 3, a plurality of clamping heads 4 and a plurality of transmission mechanisms 5.
The central housing 1 is a main structure of the detachable jig, and is generally located at a central position of the structure.
A drive mechanism 2 is provided in the center housing 1, and is mainly used to provide a source driving force for the screwing rotation operation of each fastener.
Each clamping arm 3 is connected respectively on central casing 1 to outwards extend, and each clamping head 4 sets up respectively on each clamping arm 3's end to can carry out rotary motion on clamping arm 3, the tool bit of mainly used installation and the fastener adaptation that corresponds at present, so that drive tool bit and fastener synchronous rotation, accomplish the screwing up or the operation of unscrewing of fastener.
Drive mechanism 5 sets up in each centre gripping arm 3 to drive mechanism 5's both ends link to each other with actuating mechanism 2 and holding head 4 respectively, mainly used drives force transmission to each holding head 4 with actuating mechanism 2's source on, makes actuating mechanism 2 can drive each holding head 4 smoothly and carry out synchronous rotary motion, thereby accomplishes the operation of twisting of a plurality of fasteners simultaneously through each holding head 4.
So, the dismouting tool that is applicable to many fasteners synchro operation that this embodiment provided, through the drive mechanism 5 in each centre gripping arm 3 with the drive mechanism 2's in the central casing 1 power transmission to each holding head 4 on to drive each holding head 4 synchro-rotation, and then accomplish simultaneously twisting of a plurality of fasteners and move the operation, consequently can conveniently and swiftly accomplish server subassembly dismouting operation, reduce workman intensity of labour.
In a preferred embodiment with respect to the center housing 1, the center housing 1 may be embodied as a hollow cylinder, the cross section of which is circular, and the individual holding arms 3 may be distributed on the circumferential side walls of the center housing 1 along different radial directions, respectively. Generally, each of the holding arms 3 may be uniformly distributed along the circumferential direction of the center housing 1, and the holding arms 3 may be simultaneously provided in plural, for example, 2 to 8, as required.
In a preferred embodiment of the clamping arms 3, each clamping arm 3 is rotatably connected to the side wall of the central housing 1 to improve the applicability of the present assembly and disassembly jig, considering that the installation orientations of the fasteners on different server boards may be different. Specifically, a sliding ring groove may be formed in the side wall of the center housing 1, and the connecting end of each of the holding arms 3 may be slidably disposed in the sliding ring groove. So set up, when a plurality of fasteners of different position of operation need be twisted, can rotate respectively each centre gripping arm 3, make it be in the position angle of each fastener respectively.
Further, considering that the distance between the fastening members on different server boards may be different, in this embodiment, the length of each clamping arm 3 may be adjusted appropriately. Specifically, each clamping arm 3 is the elastic arm, can produce the elastic deformation of certain degree (do not influence the normal operating of drive mechanism 5) to adjust the length of self through deformation modes such as bending deformation, adapt to the fastener of different intervals. Of course, each clamping arm 3 can be conveniently disassembled, assembled and replaced on the central shell 1, and when the distance difference of the fasteners is large, the clamping arms 3 with the corresponding length or specification can be replaced in advance according to the distance of the fasteners.
In addition, considering that the fasteners on the server board card are generally in the same mounting surface and have the same specification and size such as the horizontal height, for this reason, each clamping arm 3 in this embodiment may be in the same horizontal surface such as the same height, and thus the clamping head 4 provided at the end of each clamping arm 3 can be smoothly matched with the head of each fastener through the cutter head at the same time. Of course, if necessary, the individual gripping arms 3 may also be distributed in layers in the axial direction (generally in the height direction) of the center housing 1.
In a preferred embodiment of the driving mechanism 2, the driving mechanism 2 may be a stepping motor or an electric capstan or the like with high control precision, and may perform forward rotation or reverse rotation according to a control command. Of course, the drive mechanism 2 may also be a manual drive component, such as a torsion bar or the like.
Further, in order to facilitate the operation of controlling the operation progress of the worker when using the disassembling and assembling jig, the present embodiment provides the operation key 6 on the surface of the center housing 1. Specifically, the operation key 6 can be used for pressing or sliding operation by an operator, and is in signal connection with the driving mechanism 2, so that the operation state of the driving mechanism 2 can be conveniently controlled through preset operation, and the operation can be started or suspended.
In a preferred embodiment with respect to the transmission 5, the transmission 5 may in particular be a gear assembly, essentially comprising a plurality of intermeshing gears. Of course, the transmission mechanism 5 may also be a chain or sprocket transmission mechanism or the like. For convenience of discussion, the present embodiment is described by taking the transmission mechanism 5 as a gear transmission assembly as an example, and at this time, the output shaft of the driving mechanism 2 and the rotating shaft of the clamping head 4 are also connected with gears that are in transmission fit with the gear transmission assembly.
As shown in fig. 2, fig. 2 is a schematic view of the internal structure of the clamp arm 3 shown in fig. 1.
In another embodiment provided by the present invention, the dismounting and mounting jig suitable for the synchronous operation of multiple fasteners further includes a plurality of tensioning adjustment mechanisms 7 in addition to the central housing 1, the driving mechanism 2, the plurality of clamping arms 3, the plurality of clamping heads 4, and the plurality of transmission mechanisms 5.
The tension adjusting mechanism 7 is disposed in each gripper arm 3, and is located between the driving mechanism 2 and the transmission mechanism 5, and is mainly used for controlling the connection on-off state between the driving mechanism 2 and the transmission mechanism 5 according to the current tightening degree of each fastener, so as to enable the driving mechanism 2 and the transmission mechanism 5 to be in power connection when each fastener is not completely tightened, and to enable the driving mechanism 2 and the transmission mechanism 5 to be disconnected from power connection when each fastener is tightened.
Specifically, the tension adjusting mechanism 7 mainly includes a housing chamber 71, a tension spring 72, a rotating handle 73, and a floating transmission member 74. The accommodating cavity 71 is formed in a side wall of each of the holding arms 3, generally forms a certain included angle with the length direction of the holding arm 3, and is internally provided with a certain cavity, and is mainly used for accommodating parts such as the floating transmission member 74 and the like and providing a floating space for the floating transmission member 74.
The tension spring 72 is disposed in the accommodation chamber 71, generally in parallel with the length direction of the accommodation chamber 71, and the tension spring 72 maintains a certain tension (elastic force). A rotary handle 73 is attached to a surface of the receiving chamber 71, and a distal end of the rotary handle 73 extends into the receiving chamber 71 and is connected to one end of the tension spring 72, while the rotary handle 73 is rotatably moved in the receiving chamber 71 to press or release the tension spring 72, thereby adjusting the tension of the tension spring 72.
A floating transmission 74 is connected to the end of the tension spring 72 and serves as a transmission and forms a co-operating transmission with both the drive mechanism 2 and the transmission mechanism 5, in particular a gear, so as to mesh with a gear on the output shaft of the drive mechanism 2 and with a gear transmission component. At the same time, the floating drive 74 may undergo a "floating" motion. Specifically, the end of the tension spring 72 may be connected to a shaft bearing of the floating transmission member 74, so as to move along the elastic force direction of the tension spring 72 without affecting the rotation thereof.
With such an arrangement, when the fastener is not tightened, the resistance transmitted back to the transmission mechanism 5 by the clamping head 4 is very small, the driving mechanism 2 can drive the floating transmission member 74, the transmission mechanism 5 and the clamping head 4 to rotate at a certain speed only by keeping a small driving force, and the tensioning spring 72 keeps a certain holding force at the moment, so that the floating transmission member 74 is kept engaged with the driving mechanism 2 and the transmission mechanism 5; however, when the fastener is tightened or nearly tightened, the resistance transmitted back to the transmission mechanism 5 by the clamping head 4 increases sharply, and at this time, the bit and the clamping head 4 cannot rotate continuously, so that the transmission mechanism 5 cannot rotate continuously, and at this time, the driving force transmitted from the driving mechanism 2 to the floating transmission member 74 increases rapidly, and the compression on the tension spring 72 is deepened rapidly, so that the floating transmission member 74 moves outwards along the accommodating cavity 71 in a state of being blocked by the transmission mechanism 5 and kept in a state of being unable to rotate, and finally retreats into the accommodating cavity 71 to be separated from the matching transmission with the driving mechanism 2, so that the transmission chain is disconnected, the fastener is no longer continuously subjected to the torque from the driving mechanism 2, and at this time, an operator can suspend the operation of the driving mechanism 2 in time through the operation key 6, and avoid the fastener being over-tightened or damaged.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The dismounting and mounting jig is suitable for synchronous operation of multiple fasteners and is characterized by comprising a central shell (1), a driving mechanism (2) arranged in the central shell (1), a plurality of clamping arms (3) connected to the central shell (1), clamping heads (4) rotatably arranged at the tail ends of the clamping arms (3) and used for mounting tool bits matched with the corresponding fasteners, and transmission mechanisms (5) arranged in the clamping arms (3), two ends of each transmission mechanism are respectively connected with the driving mechanism (2) and the clamping heads (4) and used for transmitting the power of the driving mechanism (2) to the clamping heads (4);
the cross section of the central shell (1) is circular, and each clamping arm (3) is connected to the side wall of the central shell (1) along the radial direction of the central shell;
each clamping arm (3) is rotatably connected to the side wall of the central shell (1), a sliding ring groove is formed in the side wall of the central shell (1), and the connecting end of each clamping arm (3) can be arranged in the sliding ring groove in a sliding mode.
2. The tool for disassembling and assembling multiple fasteners simultaneously operated according to claim 1, wherein each of the holding arms (3) is an elastic arm.
3. The tool for the simultaneous operation of multiple fasteners as claimed in claim 2, wherein each of said gripping arms (3) is in the same level plane.
4. The tool for disassembling and assembling multiple fasteners simultaneously operated according to claim 1, wherein the driving mechanism (2) is a stepping motor or an electric capstan.
5. The tool for synchronously operating multiple fasteners as claimed in claim 4, wherein an operating button (6) for controlling the operation state of the driving mechanism (2) is arranged on the surface of the central shell (1).
6. The disassembly and assembly jig suitable for multi-fastener synchronous operation of claim 1, wherein the transmission mechanism (5) is a gear transmission assembly.
7. A dismounting jig suitable for multi-fastener synchronous operation according to any one of claims 1-6, characterized by further comprising a tension adjusting mechanism (7) arranged in each clamping arm (3) and located between the driving mechanism (2) and the transmission mechanism (5) and used for controlling connection and disconnection of the driving mechanism (2) and the transmission mechanism (5) according to the tightening degree of fasteners.
8. The jig for disassembling and assembling multiple fasteners in synchronous operation according to claim 7, wherein the tension adjusting mechanism (7) comprises a receiving cavity (71) connected to a side wall of the clamping arm (3), a tension spring (72) connected to an inner wall of the receiving cavity (71), a rotating handle (73) rotatably disposed on a surface of the receiving cavity (71) and used for adjusting the tension force of the tension spring (72), and a floating transmission member (74) connected to an end of the tension spring (72) and simultaneously in transmission with the driving mechanism (2) and the transmission mechanism (5) and used for disengaging from the transmission with the driving mechanism (2) when the driving force of the driving mechanism (2) is greater than the tension force of the tension spring (72).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010851806.7A CN111993347B (en) | 2020-08-21 | 2020-08-21 | Dismounting jig suitable for multi-fastener synchronous operation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010851806.7A CN111993347B (en) | 2020-08-21 | 2020-08-21 | Dismounting jig suitable for multi-fastener synchronous operation |
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| Publication Number | Publication Date |
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| CN111993347A CN111993347A (en) | 2020-11-27 |
| CN111993347B true CN111993347B (en) | 2022-04-22 |
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| US6874219B2 (en) * | 2003-05-22 | 2005-04-05 | Hitachi Global Storage Technologies Netherlands B.V. | System, method, and apparatus for preventing rotation of a disk clamp while being assembled to the hub of a spindle motor in a hard disk drive and fastener centering features |
| DE202004014423U1 (en) * | 2004-09-14 | 2004-11-18 | Klann-Spezial-Werkzeugbau-Gmbh | Device for mounting a motor vehicle clutch |
| US11642746B2 (en) * | 2019-01-15 | 2023-05-09 | Hamilton Sundstrand Corporatoin | Simultaneous run-in driving tool and method of use |
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|---|---|---|---|---|
| SE9804588D0 (en) * | 1998-12-29 | 1998-12-29 | Atlas Copco Tools Ab | Method of pretensioning a joint containing two or more fasteners |
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