CN108637973A - A kind of hold-down mechanism applied to non-spiro connection structure - Google Patents
A kind of hold-down mechanism applied to non-spiro connection structure Download PDFInfo
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- CN108637973A CN108637973A CN201810308802.7A CN201810308802A CN108637973A CN 108637973 A CN108637973 A CN 108637973A CN 201810308802 A CN201810308802 A CN 201810308802A CN 108637973 A CN108637973 A CN 108637973A
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- Prior art keywords
- clamping cap
- shell
- inner core
- bearing
- fixing device
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
A kind of hold-down mechanism applied to non-spiro connection structure is a kind of to quantify the hold-down mechanism assessed compression degree applied to non-spiro connection structure connection procedure.The compression degree of non-spiro connection structure inner core and shell has the performance indicator of multiple product important influence, for the compression degree of quantitative assessment inner core and shell, the present invention converts the pressing force of inner core and shell to the screw-down torque between shell fixing device and clamping cap, to realize that the pressing force between inner core and shell fixes control.In order to improve the efficiency of connection procedure, the present invention is added to two bearings to increase by two rotational freedoms on traditional mechanism, to reduce the assembly number of hold-down mechanism during the connection process, improves the consistency of connection procedure.
Description
Technical field
The invention belongs to finely assemble field, more particularly a kind of hold-down mechanism applied to non-spiro connection structure.
Background technology
As the technologies such as fine chemistry industry, chip industry, electronic information, aerospace are to the requirement day of cleanliness factor and fifth wheel
Benefit improves, and threaded connection is susceptible to fifth wheel risk and the risk problem for being difficult to assess is brought to become increasingly conspicuous, therefore nothing
The connection type of screw thread becomes ever more popular in the above industrial circle.The external screw thread for passing through inner core with traditional threaded connection
The connection type screwed by screw thread between the internal thread of shell is different, and the inner core and shell of non-threaded connection are smooth
Cylinder will fix the position of the two by way of welding or being bonded the gap between inner core and shell after inner core indentation shell
It sets and ensures to seal.
The non-mechanism that is spirally connected usually is welded by way of electron beam weldering, can effectively avoid threaded connection from occurring more
Excess risk, but bring new assembly challenge.Compression in the assembly method assembling process more difficult to control of non-threaded connection
Degree, and compress degree has more apparent influence to the performance of many products.In addition to disadvantages described above, the dress of non-threaded connection
Compression degree with mode in process of production is easy to happen variation, and so as to cause product, performance indicator occurs in process of production
Variation, harmful effect is produced to the control of product quality.
Invention content
The technology of the present invention solves the problems, such as：By using this hold-down mechanism, realize to non-spiro connection structure welding process
The quantitative measurment of compression degree, while may be implemented to reduce the effect of the dismounting number of compression tooling.
The technical scheme is that：A kind of hold-down mechanism applied to non-spiro connection structure, including shell fixing device, pressure
Tight cap, bearing pinboard, lower rolling bearing, inner core pressing device, compresses force measuring device at upper rolling bearing；Shell fixes dress
It sets and cage connection；Clamping cap is stuck in the outside of shell fixing device, and being dug on clamping cap has stepped hole；One end of upper rolling bearing
Mounted on the bottom of the stepped hole of clamping cap, the other end is connect with bearing pinboard；The other end of bearing pinboard and lower rolling
Bearing connects；The other end of lower rolling bearing is connect with inner core pressing device；It compresses force measuring device and is mounted on quantitative measurment pressure
On tight cap, for measuring the screw-down torque between clamping cap and shell fixing device.
There are fine thread, the direction of screw thread helical and the compaction direction of inner core and shell mutual in the shell fixing device
It is parallel；The lower end of clamping cap has and the fine thread joined together by shell fixing device.
Stepped hole on the clamping cap, close to shell fixing device side stepped hole it is larger, be cylindrical hole, hole it is straight
Diameter is identical as the overall diameter of upper rolling bearing；The hole of side far from shell fixing device is smaller；The diameter in the hole on clamping cap
More than the maximum distance of shell edge to center.
In clamping cap and shell fixing device rundown process, aperture on clamping cap far from shell fixing device side with
It is not interfered on the direction that Kong Yu shells and inner core on bearing pinboard compress；
The overall diameter of the lower rolling bearing must be less than the overall diameter of inner core.
The bearing switching plate body is thin-thick-thin stepped cylindrical structure.
It is different according to the scale of clamping cap, it is polygonal hole by the hole machined far from shell fixing device side on clamping cap
Or it is parallel to the parallel plane of inner core and shell compaction direction in the external process of clamping cap, to connect compression force measuring device
With clamping cap.
When clamping cap scale is larger, surveyed with pressing force by the polygonal hole far from shell fixing device side on clamping cap
Amount device is connected, when clamping cap scale is smaller, by the external parallel of clamping cap in the flat of inner core and shell compaction direction
Row plane is connected with force measuring device is compressed with clamping cap.
The thin part circle of position column of bearing switching plate body first, the interior diameter phase of body diameter and upper rolling bearing
Together, upper rolling bearing is mounted on the bottom of first thin part of bearing pinboard；Intermediate thick part was rotated in clamping cap
Ensure to interfere with clamping cap in journey；Second thin part circle of position column, body diameter are interior with lower rolling bearing
Diameter is identical, and lower rolling bearing is mounted on the bottom of second thin part, pressing square of the bearing pinboard in inner core and shell
It is equipped with hole upwards.
The inner core pressing device is stepped cylindrical structure；The thinner part of stepped cylindrical structure distance when installation
Farther out, diameter is identical as the lower interior diameter of rolling bearing for shell；The thicker part of stepped cylindrical structure must ensure with inner core with it is outer
The connecting line of shell does not interfere.
Compared with the prior art, the invention has the advantages that：
After solving the connection type of non-threaded connection of fifth wheel and putting forward, between the inner core and shell of attachment device
Compression degree be difficult to quantitative control, the degree that compressed in production engineering is easy to happen variation, and the compression between inner core and shell
Degree has large effect to the performance of product.It is compressed by shell fixing device and clamping cap in technical process.Actually make
With in the process, the scuffing in order to avoid clamping cap to inner core tends not to go to tighten clamping cap using larger power.Except this it
Outside, since clamping cap after pressing out just can not activity so that during the connection process often through first passing through welding or bonding
Method fix wherein, then remove clamping cap and shell fixing device continues to connect the connection of remaining shell and inner core
Part.The above phenomenon makes non-spiro connection structure not compress really, also can not quantitatively control compaction process, while production efficiency
It is difficult to improve.
For the compression degree of quantitative assessment inner core and shell, the present invention converts the pressing force of inner core and shell to outer
Screw-down torque between shell fixing device and clamping cap, to which the pressing force realized between inner core and shell quantitatively controls.Divided by
Except upper benefit, the present invention is added to two bearings to increase by two rotational freedoms, to reduce compacting machine on traditional mechanism
The assembly number of structure in the welding process carries out secondary connection in connection procedure, to reduce process without removing tooling
Complexity, while to improve working efficiency, it is ensured that the consistency of degree is compressed in connection procedure.
Description of the drawings
Fig. 1 is the basic structure schematic diagram to the present invention.
Specific implementation mode
The specific implementation mode of the present invention is further described in detail below in conjunction with the accompanying drawings.
A kind of hold-down mechanism applied to non-spiro connection structure, including shell fixing device 1, clamping cap 2, upper rolling bearing 3,
Bearing pinboard 4, inner core pressing device 6, compresses force measuring device 7 at lower rolling bearing 5；Shell fixing device 1 connects with shell
It connects；Clamping cap 2 is stuck in the outside of shell fixing device 1, and being dug on clamping cap 2 has stepped hole；One end of upper rolling bearing 3 is mounted on
The bottom of the stepped hole of clamping cap 2, the other end are connect with bearing pinboard 4；The other end of bearing pinboard 4 and lower rolling bearing
5 connections；The other end of lower rolling bearing 5 is connect with inner core pressing device 6；It compresses force measuring device 7 and is mounted on quantitative measurment pressure
On tight cap 2, for measuring the screw-down torque between clamping cap 2 and shell fixing device 1.
There are fine thread, the compaction direction phase in the direction and inner core and shell of screw thread helical in the shell fixing device 1
It is mutually parallel；The lower end of clamping cap 2 has and the fine thread joined together by shell fixing device 1.
Stepped hole on the clamping cap 2, the stepped hole close to 1 side of shell fixing device is larger, is cylindrical hole, hole
Diameter is identical as the overall diameter of upper rolling bearing 3；The hole of side far from shell fixing device 1 is smaller；
In clamping cap 2 and 1 rundown process of shell fixing device, far from the small of 1 side of shell fixing device on clamping cap 2
Hole is not interfered on the direction of Kong Yu shells and inner core compression on bearing pinboard 4；
The overall diameter of the lower rolling bearing 5 must be less than the overall diameter of inner core.
4 main body of bearing pinboard is thin-thick-thin stepped cylindrical structure.
It is different according to the scale of clamping cap 2, it is polygon by the hole machined far from 1 side of shell fixing device on clamping cap 2
Shape hole is parallel to the parallel plane of inner core and shell compaction direction in the external process of clamping cap 2, to connect pressing force survey
Measure device 7 and clamping cap 2.
When 2 scale of clamping cap is larger, pass through the polygonal hole and compression far from 1 side of shell fixing device on clamping cap 2
Force measuring device 7 is connected, when 2 scale of clamping cap is smaller, by the external parallel of clamping cap 2 in inner core and shell pressing square
To parallel plane with compress force measuring device 7 be connected with clamping cap 2.
The thin part circle of position column of 4 main body of bearing pinboard first, the interior diameter phase of body diameter and upper rolling bearing 3
Together, upper rolling bearing 3 is mounted on the bottom of 4 first thin parts of bearing pinboard；Intermediate thick part is rotated in clamping cap 2
Ensure to interfere with clamping cap 2 in the process；Second thin part circle of position column, body diameter and lower rolling bearing 5
Interior diameter it is identical, lower rolling bearing 5 is mounted on the bottom of second thin part, and bearing pinboard 4 is in inner core and shell
Hole is equipped in compaction direction.
The inner core pressing device 6 is stepped cylindrical structure；Its thinner part installation when apart from shell farther out,
Its diameter is identical as the interior diameter of lower rolling bearing 5；Its thicker part must ensure not occur with the connecting line of inner core and shell
Interference.
Shell fixing device 1, clamping cap 2, upper rolling bearing 3, bearing pinboard 4, lower rolling bearing 5, inner core compress dress
It sets 6, compress force measuring device 7
Structure of the invention is as shown in Figure 1, there are one inner core outer diameter and shells in the assembling process of certain model space flight flywheel
Internal diameter is that the object of 15mm needs to connect, and there are one the flange that outer diameter is φ 50mm on shell, there are three φ's 4.5 on flange
Mounting hole, first by the interior core housing of malcompression along connection edge put together, have in shell fixing device 1 on shell
The coarse-pitch thread hole of 4.5 corresponding M4 of flange hole φ, the outer edge of shell fixing device are the thin external screw thread of M64.And pass through M4
Coarse thread screw shell fixing device 1 is fixed with shell, have on clamping cap 2 with shell fixing device 1 it is matched it is thin in
Screw thread, corresponding stepped hole macropore are the hole of φ 62, and aperture is the hexagonal hole that the length of side is 20.Upper rolling bearing 3
Be φ 62 for outer diameter, internal diameter is φ 25, highly for 34 246305 angular contact ball bearings.Bearing pinboard 4 is thin-thick-thin
Diameter is respectively φ 25, φ 60 and φ 4, and three a diameter of 6 holes are made a call in the positional symmetry of distance center line 15.Lower rolling bearing
5 be internal diameter be φ 4, and outer diameter is φ 13, highly for 5 36024 angular contact ball bearing.The stepped cylindrical of inner core pressing device 6
Structure is respectively the column structure of φ 4 and φ 13.It is the regular hexagon peace that the length of side is 20 there are one one to compress force measuring device 7
It is interior to quantitatively determine to measure the torque between shell fixing device 1 and clamping cap 2 by torque spanner for the torque spanner of assembling device
Pressing force between core and shell.
After installing above-mentioned apparatus according to claims, flywheel inner core is pushed down by inner core pressed seat, flywheel
Shell is fixed on the flange fixing device that do not tighten, applies torque to clamping cap 2 by torque spanner, whole device is tightened
Afterwards, quantitatively measure the torque for being applied to device by torque spanner, upper rolling bearing 3, bearing pinboard 4, lower rolling bearing 5,
Play the role of isolation to rotation, in entire compaction process, inner core pressing device 6 will not be generated because of the effect of screw-down torque
Rotation, avoids conventional pressing device abrasion deformation caused by flywheel inner core, so this product is to high-precisions such as similar flywheels
Or size requires stringent product to have fabulous suitability, and after pressuring action, since rolling bearing 3 is deposited in this product
, after taking away and compressing force measuring device 7, by rotating freely for bearing pinboard 4, can 360 ° of leakage flywheel inner cores with it is outer
Shell gap to both fixed position and ensures to seal by the welding to this gap.There are one between inner core and shell
The tubular spring of helical, the stability that the elastic force of the spring exports flywheel is especially important, in order to coordinate assembly, according to the present invention
It is proposed above scheme, to allow clamping torque to have obtained quantitative control, the qualification rate of product improves 90% from 50%.
According to scheme proposed by the present invention, clamping torque is allow to have obtained quantitative control, the qualification rate of product is from 50%
Improve 90%.
The content that description in the present invention is not described in detail belongs to the known technology of professional and technical personnel in the field.
Claims (10)
1. a kind of hold-down mechanism applied to non-spiro connection structure, it is characterised in that：Including shell fixing device (1), clamping cap
(2), upper rolling bearing (3), bearing pinboard (4), lower rolling bearing (5), inner core pressing device (6), compression force measuring device
(7)；Shell fixing device (1) and cage connection；Clamping cap (2) is screwed in shell fixing device (1), and being dug on clamping cap (2) has
Stepped hole；One end of upper rolling bearing (3) is mounted on the bottom of the stepped hole of clamping cap (2), the other end and bearing pinboard (4)
Connection；The other end of bearing pinboard (4) is connect with lower rolling bearing (5)；The other end of lower rolling bearing (5) is compressed with inner core
Device (6) connects；Force measuring device (7) is compressed to be mounted on quantitative measurment clamping cap (2), for measure clamping cap (2) with it is outer
Screw-down torque between shell fixing device (1).
2. a kind of hold-down mechanism applied to non-spiro connection structure according to claim 1, it is characterised in that：The shell is solid
Determine have fine thread on device (1)；The lower end of clamping cap (2) has and the fine thread joined together by shell fixing device (1).
3. a kind of hold-down mechanism applied to non-spiro connection structure according to claim 1, it is characterised in that：The clamping cap
(2) stepped hole on, the stepped hole close to shell fixing device (1) side is larger, and hole is cylindrical hole, the diameter in hole and upper rolling
The overall diameter of bearing (3) is identical；The hole of side far from shell fixing device (1) is smaller, and the diameter in the hole on clamping cap (2) is big
In the maximum distance of shell edge to center.
4. a kind of hold-down mechanism applied to non-spiro connection structure according to claim 1, it is characterised in that：In clamping cap
(2) and in shell fixing device (1) rundown process, aperture and bearing far from shell fixing device (1) side on clamping cap (2)
It is not interfered on the direction that Kong Yu shells and inner core on pinboard (4) compress；
5. a kind of hold-down mechanism applied to non-spiro connection structure according to claim 1, it is characterised in that：The lower rolling
The overall diameter of bearing (5) must be less than the overall diameter of inner core.
6. a kind of hold-down mechanism applied to non-spiro connection structure according to claim 1, it is characterised in that：The bearing turns
Fishplate bar (4) main body is thin-thick-thin stepped cylindrical structure.
7. a kind of hold-down mechanism applied to non-spiro connection structure according to claim 3, it is characterised in that：According to clamping cap
(2) scale is different, and the hole machined far from shell fixing device (1) side on clamping cap (2) for polygonal hole or is being pressed
The external process of tight cap (2) is parallel to the parallel plane of inner core and shell compaction direction, with connection compress force measuring device (7) with
Clamping cap (2).
8. a kind of hold-down mechanism applied to non-spiro connection structure according to claim 3, it is characterised in that：Clamping cap (2)
When scale is larger, pass through the polygonal hole and compression force measuring device far from shell fixing device (1) side on clamping cap (2)
(7) it is connected, when clamping cap (2) scale is smaller, by the external parallel of clamping cap (2) in inner core and shell compaction direction
Parallel plane is connected with force measuring device (7) is compressed with clamping cap (2).
9. a kind of hold-down mechanism applied to non-spiro connection structure according to claim 6, it is characterised in that：Bearing pinboard
(4) the thin part circle of position column of main body first, body diameter is identical as the interior diameter of upper rolling bearing (3), upper rolling bearing
(3) it is mounted on the bottom of (4) first thin parts of bearing pinboard；Intermediate thick part is in clamping cap (2) rotation process
Guarantee cannot be interfered with clamping cap (2)；Second thin part circle of position column, body diameter and lower rolling bearing (5)
Interior diameter is identical, and lower rolling bearing (5) is mounted on the bottom of second thin part, and bearing pinboard (4) is in inner core and shell
Compaction direction on be equipped with hole.
10. according to a kind of arbitrary hold-down mechanisms applied to non-spiro connection structure of claim 1-9, it is characterised in that：Institute
It is stepped cylindrical structure to state inner core pressing device (6)；The thinner part of stepped cylindrical structure installation when apart from shell compared with
Far, diameter is identical as the lower interior diameter of rolling bearing (5)；The thicker part of stepped cylindrical structure must ensure and inner core and shell
Connecting line does not interfere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810308802.7A CN108637973B (en) | 2018-04-09 | 2018-04-09 | A kind of hold-down mechanism applied to non-spiro connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810308802.7A CN108637973B (en) | 2018-04-09 | 2018-04-09 | A kind of hold-down mechanism applied to non-spiro connection structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108637973A true CN108637973A (en) | 2018-10-12 |
| CN108637973B CN108637973B (en) | 2019-11-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810308802.7A Active CN108637973B (en) | 2018-04-09 | 2018-04-09 | A kind of hold-down mechanism applied to non-spiro connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108637973B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2579593Y (en) * | 2002-11-22 | 2003-10-15 | 黄志宏 | Thyristor press mounting clamp capable of detecting temperature |
| JP2010089179A (en) * | 2008-10-06 | 2010-04-22 | Ntn Corp | Bearing mounting auxiliary device |
| CN105108471A (en) * | 2015-09-23 | 2015-12-02 | 中国重型机械研究院股份公司 | Adjustable pretightening and fixing device |
-
2018
- 2018-04-09 CN CN201810308802.7A patent/CN108637973B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2579593Y (en) * | 2002-11-22 | 2003-10-15 | 黄志宏 | Thyristor press mounting clamp capable of detecting temperature |
| JP2010089179A (en) * | 2008-10-06 | 2010-04-22 | Ntn Corp | Bearing mounting auxiliary device |
| CN105108471A (en) * | 2015-09-23 | 2015-12-02 | 中国重型机械研究院股份公司 | Adjustable pretightening and fixing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108637973B (en) | 2019-11-12 |
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