CN206483917U - It is a kind of to require inner hole precision high bat pin structure - Google Patents
It is a kind of to require inner hole precision high bat pin structure Download PDFInfo
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- CN206483917U CN206483917U CN201720036558.4U CN201720036558U CN206483917U CN 206483917 U CN206483917 U CN 206483917U CN 201720036558 U CN201720036558 U CN 201720036558U CN 206483917 U CN206483917 U CN 206483917U
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Abstract
It is a kind of to require inner hole precision high bat pin structure, including mould, rivet and workpiece, wherein：The mould includes upper mould and lower mould；The rivet is coaxially made up of different first cylinders of two sections of external diameters and the second cylinder in the axial direction, and the middle part of rivet offers an endoporus along its axial direction, and the endoporus is through hole；On the workpiece pilot hole is offered corresponding to the first cylinder；It is characterized in that：The upper mould includes upper bolster and upper de- plate, and the first cylinder on the first spring, upper de- plate corresponding to rivet is provided between upper de- plate and upper bolster and offers escape groove；The lower mould includes die shoe and lower template, and second spring is provided between lower template and die shoe, and the upper surface of lower template offers detent corresponding to the second cylinder of rivet, and the depth of the detent and the height of the second cylinder match；The main body of the pilot hole is a manhole, and the edge of manhole circumferentially-spaced opens up fluted along its.
Description
Technical field
The utility model is related to rivet assembling field, more particularly to a kind of bat pin structure high to inner hole precision requirement.
Background technology
Rivet driver is the equipment for being assemblied in rivet on workpiece, and for a kind of rivet of special construction, the rivet exists
Coaxially it is made up of the different cylinder of two sections of external diameters on axial direction, wherein, the small cylinder of external diameter is defined as the first cylinder, the big post of external diameter
Body is defined as the second cylinder, and the middle part of rivet offers an endoporus along its axial direction, and the endoporus is through hole；The height of first cylinder
Tolerance of the degree with 0.3 millimeter（The absolute value of actual height and the difference of theoretical level）.And connecting mold is rushed on rivet driver
The stroke of head is certain, when the height of the first cylinder is more than the stroke of mould, when clapping nail, is easily caused the endoporus of rivet
Deformation is reduced；When the height of the first cylinder is less than the stroke of mould, it is impossible to which rivet is beaten in workpiece.
Current way is：First, according to the height of the cylinder of rivet first, manually rivet is classified；Then, according to
The height regulation mold stroke of first cylinder in different classes of；Finally, carry out clapping nail process.Such way has had a strong impact on bat
Follow closely efficiency, labor intensity big, and because the tolerance of the first cylinder is small, easy classification error, so as to cause product rejection.
The content of the invention
The purpose of this utility model is to provide a kind of bat pin structure high to inner hole precision requirement.
To reach above-mentioned purpose, the technical solution adopted in the utility model is：It is a kind of to require that inner hole precision high bat is followed closely
Structure, including mould, rivet and workpiece, wherein：
The mould includes upper mould and lower mould；
The rivet is coaxially made up of the different cylinder of two sections of external diameters in the axial direction, wherein, the small cylinder of external diameter is defined as
First cylinder, the big cylinder of external diameter is defined as the second cylinder, and the middle part of rivet offers an endoporus along its axial direction, and the endoporus is logical
Hole；
On the workpiece pilot hole is offered corresponding to the first cylinder；
Its innovation is：
The upper mould includes upper bolster and upper de- plate, and in the vertical direction is arranged at intervals between upper de- plate and upper bolster, on
De- that the first spring is provided between plate and upper bolster, the first spring effect is on vertical direction, corresponding to rivet on upper de- plate
First cylinder offers escape groove；
The lower mould includes die shoe and lower template, and in the vertical direction is arranged at intervals between lower template and die shoe, under
Second spring is provided between template and die shoe, second spring is acted on vertical direction, the upper surface of lower template corresponds to
Second cylinder of rivet offers detent, and the depth of the detent and the height of the second cylinder match；
The main body of the pilot hole is a manhole, and the internal diameter of the manhole is less than the external diameter of the first cylinder, so that
Be interference fitted between manhole and the first cylinder, the edge of manhole along its it is circumferentially-spaced open up fluted, groove side
Maximum distance between edge and the center of circle of manhole is more than the radius of the first cylinder；
In a state of use, the second cylinder of rivet is placed in the detent of lower template, and the first cylinder stretches out lower template
Upper surface, the workpiece is placed on the first cylinder, and the pilot hole and the first cylinder are positioned opposite.
Relevant content in above-mentioned technical proposal is explained as follows：
1st, in such scheme, the elastic force of first spring is more than the elastic force of second spring.
2nd, in such scheme, upper padding plate and train wheel bridge are provided between the upper bolster and upper de- plate, train wheel bridge is located at upper
Between backing plate and upper de- plate, in the vertical direction arranged for interval between upper de- plate and train wheel bridge.
3rd, in such scheme, lower bolster is provided between the lower template and die shoe, between lower bolster and lower template
Arranged for interval on vertical direction.
4th, in such scheme, rivet endoporus is provided with a pilot pin, lower template on the die shoe or lower bolster
Upper to offer pilot hole corresponding to pilot pin, pilot pin is arranged in pilot hole；
In a state of use, the upper end of the pilot pin is arranged in the endoporus of rivet with quilting rivet.
5th, in such scheme, the pilot pin is along it axially with external diameter different epimere and hypomere, and the external diameter of epimere is small
In the external diameter of hypomere, the internal diameter of the external diameter and rivet endoporus of the hypomere matches；
The length of the epimere is less than or equal to the stroke of lower template；
During processing, as lower template declines, the hypomere of pilot pin enters in rivet endoporus, aperture to rivet endoporus and
Shape plays a protective role.
6th, in such scheme, external diameter 0.005 ~ 0.1 milli bigger than the internal diameter of manhole in pilot hole of first cylinder
Rice, the internal diameter of manhole is smaller 0.05 ~ 0.1 millimeter than the maximum distance between recess edge and the center of circle of manhole.
Utility model works principle and advantage are：First cylinder of pilot hole and rivet on the utility model workpiece it
Between interference fit while leave certain interval, rivet press-in pilot hole during, the endoporus of rivet will not produce shape
Become, and connect reliable；It is upper to take off between plate and upper bolster by the connection of the first spring, pass through between lower template and die shoe
Second spring elasticity link, after rivet and workpiece are in place, drift is moved with upper mould towards lower mould, and upper de- plate is first
Workpiece is first touched, then, because the elastic force of the first spring is more than the elastic force of second spring, second spring starts compression, rivet
By in the tentatively pilot hole of press-in workpiece, upper mould continues to be pressed downward, because lower mould is closed, now, and the first spring starts pressure
Contracting, upper de- plate produces the power pushed to workpiece, and rivet is pressed completely into the pilot hole of workpiece, after the completion of pushing, upper mould
And it is not fully closed, gap between upper de- plate and upper bolster/train wheel bridge is used for the first cylinder for adapting to different height, workpiece with
Rivet is well combined, gapless between rivet and workpiece, and thrust test passes.
Brief description of the drawings
Fig. 1 is the utility model embodiment rivet arrangement schematic diagram；
Fig. 2 is the utility model embodiment pilot pin structural representation；
Fig. 3 is the utility model embodiment mounting hole configuration schematic diagram；
Fig. 4 is that the utility model embodiment claps the schematic diagram of pin structure working condition one；
Fig. 5 is that the utility model embodiment claps the schematic diagram of pin structure working condition two；
Fig. 6 is that the utility model embodiment claps the schematic diagram of pin structure working condition three；
Fig. 7 is that the utility model embodiment claps the schematic diagram of pin structure working condition four.
In the figures above：1st, rivet；11st, the first cylinder；12nd, the second cylinder；13rd, endoporus；2nd, workpiece；21st, pilot hole；
211st, the edge of manhole；212nd, recess edge；O, the center of circle；A, manhole radius；B, recess edge and manhole
The center of circle between maximum distance；3rd, pilot pin；31st, epimere；32nd, hypomere；41st, upper bolster；42nd, upper de- plate；421st, avoid
Groove；43rd, train wheel bridge；44th, upper padding plate；45th, the first spring；51st, die shoe；52nd, lower template；53rd, lower bolster；54th, second spring.
Embodiment
Below in conjunction with the accompanying drawings and embodiment is further described to the utility model：
Embodiment：
It is a kind of to require inner hole precision high bat pin structure, including mould, rivet 1 and workpiece 2 referring to shown in Fig. 1 ~ Fig. 7,
Wherein：
The mould includes upper mould and lower mould；
Shown in Figure 1, the rivet 1 is coaxially made up of the different cylinder of two sections of external diameters in the axial direction, wherein, external diameter is small
Cylinder be defined as the first cylinder 11, the big cylinder of external diameter is defined as the second cylinder 12, and the middle part of rivet 1 is offered along its axial direction
One endoporus 13, the endoporus is through hole.
It is shown in Figure 3, offer pilot hole 21 corresponding to the first cylinder 11 on the workpiece 2.
Referring to shown in Fig. 4 ~ Fig. 7, the upper mould includes upper bolster 41 and upper de- plate 42, between upper de- plate 42 and upper bolster 41
In the vertical direction is arranged at intervals, and is provided with the first spring 45 between upper de- plate 42 and upper bolster 41, the first spring 45 is acted on
On vertical direction, the first cylinder 11 on upper de- plate 42 corresponding to rivet 1 offers escape groove 421；
The lower mould includes die shoe 51 and lower template 52, in the vertical direction interval between lower template 52 and die shoe 51
Set, second spring 54 is provided between lower template 52 and die shoe 51, second spring 54 is acted on vertical direction, lower template
The second cylinder 12 that 52 upper surface corresponds to rivet 1 offers detent, the depth of the detent and the second cylinder 12
Height match.
Shown in Figure 3, the main body of the pilot hole 21 is a manhole, and the radius a of the manhole is less than first
The radius of cylinder 11, to be interference fitted between manhole and the first cylinder 11, the edge 211 of manhole is along its circumference
It is spaced apart and is provided with groove, the maximum distance b between recess edge 212 and the center of circle of manhole is more than the half of the first cylinder 11
Footpath.
In a state of use, the second cylinder 12 of rivet 1 is placed in the detent of lower template 52, and the first cylinder 11 stretches out
The upper surface of lower template 52, the workpiece 2 is placed on the first cylinder 11, and the pilot hole 21 and the first cylinder 11 are positioned opposite.
The elastic force of first spring 45 is more than the elastic force of second spring 54.
Upper padding plate 44 and train wheel bridge 43 are provided between the upper bolster 41 and upper de- plate 42, train wheel bridge 43 is located at upper padding plate
Between 44 and upper de- plate 42, in the vertical direction arranged for interval between upper de- plate 42 and train wheel bridge 43.
Lower bolster 53 is provided between the lower template 52 and die shoe 51, vertical between lower bolster 53 and lower template 52
Arranged for interval on direction.
It is right in a pilot pin 3, lower template 52 to be provided with the die shoe 51 or lower bolster 53 corresponding to the endoporus 13 of rivet 1
Pilot hole should be offered in pilot pin 3, pilot pin 3 is arranged in pilot hole；
In a state of use, the upper end of the pilot pin 3 is arranged in the endoporus of rivet 1 with quilting rivet 1.
The pilot pin 3 is along it axially with external diameter different epimere 31 and hypomere 32, and the external diameter of epimere 31 is less than hypomere
32 external diameter, the internal diameter of the external diameter and the endoporus 13 of rivet 1 of the hypomere 32 matches；
The length of the epimere 31 is less than or equal to the stroke of lower template 52；
During processing, as lower template 52 declines, the hypomere 32 of pilot pin 3 enters in the endoporus 13 of rivet 1, to the endoporus of rivet 1
13 aperture and shape play a protective role.
Referring to shown in Fig. 4 ~ Fig. 7, between the first cylinder 11 of pilot hole 21 and rivet 1 on the utility model workpiece 2
Certain interval is left while interference fit, during the press-in pilot hole 21 of rivet 1, the endoporus 13 of rivet 1 will not be produced
Deformation, and connect reliable；Upper take off passes through the elastic connection of the first spring 45 between plate 42 and upper bolster 41, lower template 52 and lower mould
Linked between seat 51 by the elasticity of second spring 54, after rivet and workpiece 2 are in place, drift is with upper mould under
Mould is moved, and upper de- plate 42 touches workpiece 2 first, then, because the elastic force of the first spring 45 is more than the elastic force of second spring 54,
Second spring 54 starts compression, and rivet 1 is by the tentatively pilot hole 21 of press-in workpiece 2, and upper mould continues to be pressed downward, due to lower mould
Closed, now, the first spring 45 starts compression, and upper de- plate 42 produces the power pushed to workpiece 2, and rivet 1 is pressed completely
Enter in the pilot hole 21 of workpiece 2, after the completion of pushing, upper mould is simultaneously not fully closed, upper de- plate 42 and the train wheel bridge 43 of upper bolster 41/ it
Between gap be used to adapt to the first cylinder 11 of different height, workpiece 2 is well combined with rivet 1, nothing between rivet 1 and workpiece 2
Gap, and thrust test passes.
Above-described embodiment is only to illustrate technical concepts and features of the present utility model, and its object is to allow be familiar with technique
Personage can understand content of the present utility model and implement according to this, protection domain of the present utility model can not be limited with this.
All equivalent change or modifications made according to the utility model Spirit Essence, should all cover protection domain of the present utility model it
It is interior.
Claims (6)
1. a kind of require inner hole precision high bat pin structure, including mould, rivet and workpiece, wherein：
The mould includes upper mould and lower mould；
The rivet is coaxially made up of the different cylinder of two sections of external diameters in the axial direction, wherein, the small cylinder of external diameter is defined as first
Cylinder, the big cylinder of external diameter is defined as the second cylinder, and the middle part of rivet offers an endoporus along its axial direction, and the endoporus is through hole；
On the workpiece pilot hole is offered corresponding to the first cylinder；
It is characterized in that：
The upper mould includes upper bolster and upper de- plate, and in the vertical direction is arranged at intervals between upper de- plate and upper bolster, upper de- plate
The first spring is provided between upper bolster, the first spring effect corresponds to the first of rivet on vertical direction on upper de- plate
Cylinder offers escape groove；
The lower mould includes die shoe and lower template, and in the vertical direction is arranged at intervals between lower template and die shoe, lower template
Second spring is provided between die shoe, second spring is acted on vertical direction, the upper surface of lower template corresponds to rivet
The second cylinder offer detent, the depth of the detent and the height of the second cylinder match；
The main body of the pilot hole is a manhole, and the internal diameter of the manhole is less than the external diameter of the first cylinder, to cause circle
Be interference fitted between shape through hole and the first cylinder, the edge of manhole along its it is circumferentially-spaced open up fluted, recess edge with
Maximum distance between the center of circle of manhole is more than the radius of the first cylinder；
In a state of use, the second cylinder of rivet is placed in the detent of lower template, and the first cylinder stretches out the upper of lower template
Surface, the workpiece is placed on the first cylinder, and the pilot hole and the first cylinder are positioned opposite.
2. according to claim 1 require inner hole precision high bat pin structure, it is characterised in that：First spring
Elastic force is more than the elastic force of second spring.
3. according to claim 1 require inner hole precision high bat pin structure, it is characterised in that：The upper bolster with it is upper
Upper padding plate and train wheel bridge are provided between de- plate, train wheel bridge is located between upper padding plate and upper de- plate, between upper de- plate and train wheel bridge
In the vertical direction arranged for interval.
4. according to claim 1 require inner hole precision high bat pin structure, it is characterised in that：The lower template is with
Lower bolster is provided between die holder, in the vertical direction arranged for interval between lower bolster and lower template.
5. according to claim 1 require inner hole precision high bat pin structure, it is characterised in that：The die shoe or under
It is provided with backing plate corresponding to rivet endoporus in a pilot pin, lower template and offers pilot hole corresponding to pilot pin, pilot pin is worn
In pilot hole；
In a state of use, the upper end of the pilot pin is arranged in the endoporus of rivet with quilting rivet.
6. according to claim 5 require inner hole precision high bat pin structure, it is characterised in that：The pilot pin along its
Axially with external diameter different epimere and hypomere, the external diameter of epimere is less than in the external diameter of hypomere, the external diameter and rivet of the hypomere
The internal diameter in hole matches；
The length of the epimere is less than or equal to the stroke of lower template.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720036558.4U CN206483917U (en) | 2017-01-12 | 2017-01-12 | It is a kind of to require inner hole precision high bat pin structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720036558.4U CN206483917U (en) | 2017-01-12 | 2017-01-12 | It is a kind of to require inner hole precision high bat pin structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206483917U true CN206483917U (en) | 2017-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720036558.4U Active CN206483917U (en) | 2017-01-12 | 2017-01-12 | It is a kind of to require inner hole precision high bat pin structure |
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| CN (1) | CN206483917U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111001710A (en) * | 2019-12-27 | 2020-04-14 | 滁州市艾德模具设备有限公司 | Riveting die for gas water heater |
-
2017
- 2017-01-12 CN CN201720036558.4U patent/CN206483917U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111001710A (en) * | 2019-12-27 | 2020-04-14 | 滁州市艾德模具设备有限公司 | Riveting die for gas water heater |
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