CN202805102U

CN202805102U - Splined screw barrel mounting tool

Info

Publication number: CN202805102U
Application number: CN 201220357244
Authority: CN
Inventors: 王亮; 赵艳平; 梁雪驰; 周凤利
Original assignee: Luoyang Institute of Electro Optical Equipment AVIC
Current assignee: Luoyang Institute of Electro Optical Equipment AVIC
Priority date: 2012-07-23
Filing date: 2012-07-23
Publication date: 2013-03-20
Anticipated expiration: 2022-07-23

Abstract

The utility model discloses a splined screw barrel mounting tool. A retaining end face of the splined screw barrel mounting tool is provided with positioning pin holes for pin keys with the splined screw barrels to insert. The positioning pin holes are blind holes with orifices on the retaining end face. Hole depth is reserved between the orifices and the bottoms of the positioning pin holes so as to be used for enabling the hole edges and an annular end face of the splined screw barrels to be in clearance fit when the pin keys are in retaining matching with the bottoms of the holes. When in use, the pin keys on the splined screw barrels can be inserted into the positioning pin holes, suspension ends of the pin keys are in retaining matching with the blind end hole bottoms of the positioning pin holes, a gap is reserved between the annular end faces of the splined screw barrels and the edges of the positioning pin holes, and accordingly, operators can beat the tool body to press the pin keys between the outer circumference surfaces of the splined screw barrels and the walls of threaded holes of a base body via the blind end hole bottoms, and in the process, the walls of the positioning pin holes can retain on the outer circumference of the suspension ends of the pin keys so that bending deformation of the suspension ends of the pin keys is prevented.

Description

Band key swivel nut erecting tools

Technical field

The utility model relates to machanical fastener mounting technology field, relates in particular to a kind of band key swivel nut erecting tools.

Background technology

A kind of machanical fastener with internal and external threads commonly used with the key swivel nut.Usually will screw in softer matrix material with the key swivel nut, and then with bolt, screw or double-screw bolt adapted, to enlarge the lifting surface area of matrix internal thread.With the key swivel nut owing to possess good self-locking property, in Aero-Space, the extensive use of defence field.Traditional mounting means is will be with the key swivel nut to screw in the matrix screw with hand first, with specific purpose tool the key bar is hammered onto in the screwed hole again, and key bar and matrix internal thread interfere, so that band key swivel nut firmly is fixed in the matrix.Installation process is fashionable with hand-screw, is difficult for grasping, and is prone to the installation incomplete phenomena.When knocking the key bar, need to adopt special tooling, complex installation process, assembly cost height.

Application number is that 201120172651.0 Chinese utility model patent discloses a kind of band key swivel nut erecting tools; convex with on the tool body of this instrument for the alignment pin of insertion with the column of the endoporus of key swivel nut; be provided with for the block end face that cooperates along block with hole with key swivel nut endoporus at the outer peripheral face of alignment pin root; periphery at the block end face offers the bearing of trend only spin slot parallel with alignment pin; end spin slot and have the opening on an end end face of alignment pin head that is in the block end face; in use; the user fits over by ending spinning with instrument with the end that the key swivel nut is provided with pin key; thereby drive with the key swivel nut by instrument and to screw in the screwed hole of matrix; and then the other end that knocks tool body is pressed into pin key in the keyway of offering on the outer peripheral face with the key swivel nut with the inner block end face by ending spin slot; make the purpose that reaches self-locking with the key swivel nut; but owing to end the notch that the outside of spin slot has Open architecture; can not play a protective role to pin key; when the pin key tool using being pressed into the space between the mating surface of the internal thread of the external screw thread of key swivel nut and matrix; the axial impact force that acts on the pin key can make pin key open to the notch outer radial of ending spin slot; flexural deformation; thereby so that be difficult to insert between the inner hole wall with the outer peripheral face of key swivel nut and matrix with the pin key on the key swivel nut; improved with the installation difficulty of key swivel nut on matrix, so that waste time and energy with the installation process of key swivel nut on matrix.

The utility model content

The purpose of this utility model provides a kind of band key swivel nut erecting tools, is intended to solve in the prior art in the process of strike with the key swivel nut, and pin key holds flexible problem.

In order to realize above purpose, the technical scheme that the utility model adopts is:

Technical scheme with key swivel nut erecting tools of the present utility model is as follows:

Band key swivel nut erecting tools, comprise tool body, convex with on the tool body for the alignment pin of insertion with the endoporus of key swivel nut, be provided with around the alignment pin root on the tool body for the block end face that cooperates along block with hole with key swivel nut endoporus, offer the dowel hole that inserts for for the pin key with the key swivel nut on the described block end face, described dowel hole is that the aperture is in the blind hole on the block end face, has between at the bottom of the aperture of dowel hole and the hole for making the hole along the hole depth that cooperates with ring end clearance with the key swivel nut when pin key cooperates with block at the bottom of the hole.

Also offer on the described block end face for only revolving deep hole for what insert with the pin key on the key swivel nut, described only to revolve deep hole larger than the degree of depth of dowel hole.

Described dowel hole and only revolve deep hole and all have at least one pair of, described dowel hole and the aperture of only revolving deep hole are evenly distributed on the described block end face.

The utility model offers the dowel hole that inserts for for the pin key with the key swivel nut at the block end face, dowel hole is that the aperture is in the blind hole on the block end face, have between at the bottom of the aperture of dowel hole and the hole for when pin key cooperates with block at the bottom of the hole, making the hole along the hole depth that cooperates with ring end clearance with the key swivel nut, in use, can insert in the dowel hole with the pin key on the key swivel nut, and block cooperates at the bottom of the cecum hole of the projecting end of pin key and dowel hole, with the hole of the ring end face of key swivel nut and dowel hole along between have the gap, namely pin key is larger than the depth size of dowel hole with the length dimension that overhangs on the key swivel nut, thereby so that the staff can pass through the hammer tool main body, with by at the bottom of the cecum hole of dowel hole pin key being pressed between the screwed hole hole wall with the outer peripheral face of key swivel nut and matrix, and in this process, the hole wall of dowel hole can block on the periphery of pin key projecting end, to stop the flexural deformation of pin key projecting end, and then solved in the prior art in the process of strike with the key swivel nut, pin key holds flexible problem.

Description of drawings

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is the right view of Fig. 1.

The specific embodiment

Embodiment with key swivel nut erecting tools of the present utility model, as shown in Figure 1 to Figure 3, this comprises the tool body 1 of column with key swivel nut erecting tools, one end one of tool body 1 convexes with for the alignment pin 2 that stretches into the endoporus of key swivel nut (not shown), the root periphery of alignment pin 2 is provided with for the block end face 3 that cooperates along block with hole with key swivel nut endoporus, this block end face 3 is the ring end face of tool body 1 and alignment pin 2 junctions, and block end face 3 offer for for insert with the pin key on the key swivel nut and the hole along and with the ring end face of key swivel nut between the gapped dowel hole 4 of tool, be used for for inserting with the pin key on the key swivel nut and only revolving deep hole 5 by the hole along what cooperate with ring end face block with the key swivel nut, dowel hole 4 has a pair of, each dowel hole 4 all have be in block end face 3 towards the shallow bore hole opening on the end end face of alignment pin 2 heads and be used for when rotating, with at the bottom of the cecum hole that the projecting end block of pin key cooperates; Only revolve deep hole 5 also have a pair of, each only revolve deep hole 5 all have be in block end face 3 towards the deep hole opening on the end end face of alignment pin 2 heads and be used for when rotating, with only screw the hole wall that closes by pin key with the key swivel nut.

End away from alignment pin 2 of described tool body 1 is processed with six square head structures 6.

The utility model in use, to corresponding the insertion only revolve in the deep hole 5 with a pair of pin key on the key swivel nut first, and the end ring end face that offering of block end face 3 only revolved deep hole 5 is sticked on the ring end face with the key swivel nut, so that only screwing by pin key with band key swivel nut, closes tool body 1; Then by spanner turning tool main body 1 so that under the drive of tool body 1, screws in the screwed hole that matrix offers with the key swivel nut, until pin key push up the hole that is pressed in the matrix screwed hole along the time stop operating; Then tool body 1 is pulled up from band key swivel nut, and after rotating to an angle, make with the pin key on the key swivel nut and insert in the dowel hole 4 so that on the projecting end of pin key top is pressed at the bottom of the cecum hole of dowel hole 4, the hole that makes dowel hole 4 along and the ring end face with the key swivel nut between have the gap; At last by hammer tool main body 1, so that pin key has namely been finished the installation with the key swivel nut between the wall surface of the hole that is pressed under the squeezing action at the bottom of the cecum hole of dowel hole 4 with the outer peripheral face of key swivel nut and matrix screwed hole.

The utility model drives in the process of rotating with the key swivel nut at tool body 1, only revolve the hole wall of deep hole 5 can block on the periphery of pin key, thereby stop the flexural deformation of pin key in rotation process; Pin key is being suppressed in the process between the wall surface of the hole of the outer peripheral face of key swivel nut and matrix screwed hole, the hole wall of dowel hole 4 can block on the periphery of pin key projecting end, to stop the flexural deformation of pin key projecting end, and then stoped the pin key rotation and by the distortion in the process of hitting, solved the problem that inconvenience is installed at matrix with the key swivel nut in the prior art.

In the above-described embodiments, only revolving deep hole and dowel hole is a pair of, thereby so that this erecting tools is applicable to have the band key swivel nut of two pin keies, in other embodiments, for the band key swivel nut with or unnecessary two pin keies, dark on this erecting tools, the quantity of dowel hole also can correspondingly arrange, to adapt to the installation with the key swivel nut with varying number pin key, and dark, the concrete quantity of dowel hole should all can not be less than the quantity with pin key on the key swivel nut, and only revolves deep hole and the setting position of dowel hole on the block end face also can be corresponding with the distributed architecture of pin key on swivel nut.

In the above-described embodiments, this erecting tools drives the rotation of key swivel nut by only revolving deep hole, by dowel hole pin key is suppressed between the wall surface of the hole with the outer peripheral face of key swivel nut and matrix screwed hole, but because the hole wall of dowel hole also can be realized closing with only screwing between key swivel nut and the tool body, therefore in other embodiments, on the block end face, also can offer separately dowel hole.

Claims

1. be with key swivel nut erecting tools, comprise tool body, convex with on the tool body for the alignment pin of insertion with the endoporus of key swivel nut, be provided with around the alignment pin root on the tool body for the block end face that cooperates along block with hole with key swivel nut endoporus, it is characterized in that, offer the dowel hole that inserts for for the pin key with the key swivel nut on the described block end face, described dowel hole is that the aperture is in the blind hole on the block end face, has between at the bottom of the aperture of dowel hole and the hole for making the hole along the hole depth that cooperates with ring end clearance with the key swivel nut when pin key cooperates with block at the bottom of the hole.

2. band key swivel nut erecting tools according to claim 1 is characterized in that, also offers on the described block end face for only revolving deep hole for what insert with the pin key on the key swivel nut, and described only to revolve deep hole larger than the degree of depth of dowel hole.

3. band key swivel nut erecting tools according to claim 2 is characterized in that, described dowel hole and only revolve deep hole and all have at least one pair of, and described dowel hole and the aperture of only revolving deep hole are evenly distributed on the described block end face.