CN104816281A - Exhaust pipe fixing method in core pressing procedure - Google Patents
Exhaust pipe fixing method in core pressing procedure Download PDFInfo
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- CN104816281A CN104816281A CN201510171647.5A CN201510171647A CN104816281A CN 104816281 A CN104816281 A CN 104816281A CN 201510171647 A CN201510171647 A CN 201510171647A CN 104816281 A CN104816281 A CN 104816281A
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- China
- Prior art keywords
- noise reduction
- cylindrical shell
- reduction cylindrical
- push rod
- fixed head
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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
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/026—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same fluid driven
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
Abstract
The invention discloses an exhaust pipe fixing method in a core pressing procedure. When a pressing part effects on an inner core, a silencing cylinder continuously and downwards moves for a period of distance until the bottom of the silencing cylinder is contacted with the upper end of a push rod; and the continuous movement of the silencing cylinder is limited to guarantee the fixing stability of the silencing cylinder in the inner core pressing period, so that the three-point clamping of the silencing cylinder is realized, the deviated displacement or the radial jumping of the silencing cylinder in pressing is prevented, the fastening of the silencing cylinder is guaranteed when the inner core is pressed, and the purpose of improving the inner core pressing efficiency is achieved.
Description
Technical field
The present invention relates to a kind of blast pipe, specifically refer to a kind of fixing means of pressing blast pipe in core operation.
Background technology
In order to meet day by day harsh environmental regulation requirement, the enterprise of many countries is all in the technology of research mass production cartridge type clarifier, existing cartridge type purifying muffler outlet side is arranged on round center mostly, the manufacturing technology of this clarifier is very ripe, can directly carry out press-fiting production.But press-fit in process actual, frequent generation noise reduction cylindrical shell occur crack or in core cannot normally be press fit into suitable position, and then greatly reduce the service behaviour of muffler, trace it to its cause, because press down in process at inner core, the fixing appearance of noise reduction cylindrical shell loosens, and makes inner core radial swing occur in cylindrical shell and cause press-fiting failure.
Summary of the invention
The object of the present invention is to provide a kind of fixing means of pressing blast pipe in core operation, making inner core ensure the fastening of noise reduction cylindrical shell when pressing down, and then reach the object that core in raising press-fits efficiency.
Object of the present invention is achieved through the following technical solutions:
Press a fixing means for blast pipe in core operation, comprise the following steps:
(A) noise reduction cylindrical shell is placed in cone-shaped cavity, until the outer wall of noise reduction cylindrical shell and the contact internal walls of through hole, now start driving arrangement, make cross bar start to move down, the chuck the being positioned at fixed head end then direct outer wall by noise reduction cylindrical shell is held the axis made it along securing member tightly and is moved;
(B) in the process that moves down at noise reduction cylindrical shell of rubber ring directly and its wall contacts, to prevent the outer wall of hush pipe body rigid impaired, simultaneously when pressing down parts to inner core effect, noise reduction cylindrical shell can continue to move down a segment distance in through hole, namely movement is cushioned, until the bottom of noise reduction cylindrical shell contacts with the upper end of push rod, the continuation of restriction noise reduction cylindrical shell is moved, and then guarantee that the stability that inner core press-fits period noise reduction cylindrical shell is fixed, by push rod top, act on while through-hole wall and chuck, realize 3 clampings to noise reduction cylindrical shell, thoroughly avoid noise reduction cylindrical shell and press-fit the deflection displacement or circular runout that occur in process, inner core is made to ensure the fastening of noise reduction cylindrical shell when pressing down,
(C) by the hinged setting of fixed head and then the live load substantially reducing driving arrangement, and offer movable chamber at the middle part of fixed head, this movable chamber preferably can be set to rectangle, and the bottom surface in this rectangular active chamber is the arc be bent upwards, the roller of push rod end is trapped in movable cavity, namely push rod is realized when moving down, the movement locus identical with lower arcuate surface is there is in roller in movable chamber, and roller and movable chamber do not depart from, after fixed head contacts completely with the upper surface of securing member, now chuck is thoroughly stuck by noise reduction cylindrical shell;
(D) when the lower end major part of noise reduction cylindrical shell enters after in through hole, driving arrangement quits work, and certain spacing is left in the bottom of the end-to-end distance noise reduction cylindrical shell of push rod, then press-fits operation to the work of inner core in order to what complete muffler by pressing down parts;
In above-mentioned steps, have up big and down small cone-shaped cavity at the middle part of described securing member, and be connected with through hole in the lower end of cone-shaped cavity, the internal diameter of described through hole is identical with the external diameter of noise reduction cylindrical shell, the inwall of through hole arranges cannelure, in cannelure, is longitudinally arranged side by side multiple rubber ring; Also comprise mutual cross bar connected vertically and push rod, be fixed with respectively through the push rod of base, securing member at the two ends of cross bar, the two ends of securing member are hinged with fixed head, the end relative at two fixed heads is provided with chuck, have movable chamber at the middle part of described fixed head, and the bottom surface in described movable chamber is the cambered surface be bent upwards, the end of described push rod is fixed with the roller that can be free to slide in movable chamber, when push rod moves down, fixed head can move downward with push rod.
Further, the internal diameter counting rubber ring described in last is from top to bottom less than the external diameter of described noise reduction cylindrical shell.For improving the laying state of noise reduction cylindrical shell in through hole, the present invention will count last rubber ring from top to bottom and extend to through hole center, the internal diameter of this rubber ring is made to be less than the external diameter of noise reduction cylindrical shell, namely when noise reduction cylindrical shell is displaced downwardly to the tip contact of its bottom and push rod, certain deformation can be there is in this rubber ring, and the pulling force that deformation produces when press-fiting for core in cushioning noise reduction cylindrical shell continue the trend of movement downwards, reduction noise reduction cylindrical shell bottom impact that push rod is caused simultaneously.
Further, the cross section of described chuck is circular arc, and at the bottom of the arc of two chucks between spacing identical with the external diameter of noise reduction cylindrical shell.Fixed head moves with push rod and does the rectilinear motion on vertical direction, the movement locus of chuck is consistent with fixed head, when noise reduction cylindrical shell is placed in cone-shaped cavity, two chucks carry out semi-packing type clamping to the outer wall of noise reduction cylindrical shell, and moving down and move down with push rod, ensure that noise reduction cylindrical shell keeps correct station in cone-shaped cavity, the efficiency press-fited with core in improving.
The present invention compared with prior art, has following advantage and beneficial effect:
1, the present invention is when pressing down parts to inner core effect, noise reduction cylindrical shell can continue to move down a segment distance in through hole, namely movement is cushioned, until the bottom of noise reduction cylindrical shell contacts with the upper end of push rod, the continuation of restriction noise reduction cylindrical shell is moved, and then guarantee that the stability that inner core press-fits period noise reduction cylindrical shell is fixed, by push rod top, act on while through-hole wall and chuck, realize 3 clampings to noise reduction cylindrical shell, thoroughly avoid noise reduction cylindrical shell and press-fit the deflection displacement or circular runout that occur in process, inner core is made to ensure the fastening of noise reduction cylindrical shell when pressing down, and then reach the object that core in raising press-fits efficiency,
2, the present invention improves the laying state of noise reduction cylindrical shell in through hole, the present invention will count last rubber ring from top to bottom and extend to through hole center, the internal diameter of this rubber ring is made to be less than the external diameter of noise reduction cylindrical shell, namely when noise reduction cylindrical shell is displaced downwardly to the tip contact of its bottom and push rod, certain deformation can be there is in this rubber ring, and the pulling force that deformation produces when press-fiting for core in cushioning noise reduction cylindrical shell continue the trend of movement downwards, reduction noise reduction cylindrical shell bottom impact that push rod is caused simultaneously;
3, fixed head of the present invention moving and do the rectilinear motion on vertical direction with push rod, the movement locus of chuck is consistent with fixed head, when noise reduction cylindrical shell is placed in cone-shaped cavity, two chucks carry out semi-packing type clamping to the outer wall of noise reduction cylindrical shell, and moving down and move down with push rod, ensure that noise reduction cylindrical shell keeps correct station in cone-shaped cavity, the efficiency press-fited with core in improving.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide the further understanding to the embodiment of the present invention, forms a application's part, does not form the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is structural representation of the present invention;
Mark and corresponding parts title in accompanying drawing:
1-base, 2-securing member, 3-push rod, 4-fixed head, 5-rubber ring, 6-chuck, 7-noise reduction cylindrical shell, 8-push rod, 9-cone-shaped cavity, 10-cross bar, the movable chamber of 11-, 12-roller.
Detailed description of the invention
Clearly understand for making the object, technical solutions and advantages of the present invention, below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, and exemplary embodiment of the present invention and explanation thereof are only for explaining the present invention, not as a limitation of the invention.
Embodiment 1
As shown in Figure 1, the present embodiment comprises the following steps:
(A) noise reduction cylindrical shell is placed in cone-shaped cavity, until the outer wall of noise reduction cylindrical shell and the contact internal walls of through hole, now start driving arrangement, make cross bar start to move down, the chuck the being positioned at fixed head end then direct outer wall by noise reduction cylindrical shell is held the axis made it along securing member tightly and is moved;
(B) in the process that moves down at noise reduction cylindrical shell of rubber ring directly and its wall contacts, to prevent the outer wall of hush pipe body rigid impaired, simultaneously when pressing down parts to inner core effect, noise reduction cylindrical shell can continue to move down a segment distance in through hole, namely movement is cushioned, until the bottom of noise reduction cylindrical shell contacts with the upper end of push rod, the continuation of restriction noise reduction cylindrical shell is moved, and then guarantee that the stability that inner core press-fits period noise reduction cylindrical shell is fixed, by push rod top, act on while through-hole wall and chuck, realize 3 clampings to noise reduction cylindrical shell, thoroughly avoid noise reduction cylindrical shell and press-fit the deflection displacement or circular runout that occur in process, inner core is made to ensure the fastening of noise reduction cylindrical shell when pressing down,
(C) by the hinged setting of fixed head and then the live load substantially reducing driving arrangement, and offer movable chamber at the middle part of fixed head, this movable chamber preferably can be set to rectangle, and the bottom surface in this rectangular active chamber is the arc be bent upwards, the roller of push rod end is trapped in movable cavity, namely push rod is realized when moving down, the movement locus identical with lower arcuate surface is there is in roller in movable chamber, and roller and movable chamber do not depart from, after fixed head contacts completely with the upper surface of securing member, now chuck is thoroughly stuck by noise reduction cylindrical shell;
(D) when the lower end major part of noise reduction cylindrical shell enters after in through hole, driving arrangement quits work, and certain spacing is left in the bottom of the end-to-end distance noise reduction cylindrical shell of push rod, then press-fits operation to the work of inner core in order to what complete muffler by pressing down parts;
In above-mentioned steps, have up big and down small cone-shaped cavity 9 at the middle part of described securing member 2, and be connected with through hole in the lower end of cone-shaped cavity 9, the internal diameter of described through hole is identical with the external diameter of noise reduction cylindrical shell 7, the inwall of through hole arranges cannelure, in cannelure, is longitudinally arranged side by side multiple rubber ring 5; Also comprise mutual cross bar connected vertically 10 and push rod 8, be fixed with respectively through the push rod 3 of base 1, securing member 2 at the two ends of cross bar 10, the two ends of securing member 2 are hinged with fixed head 4, the end relative at two fixed heads 4 is provided with chuck 6, movable chamber 11 is had at the middle part of described fixed head 4, and the bottom surface in described movable chamber 11 is the cambered surface be bent upwards, the end of described push rod 3 is fixed with the roller 12 that can be free to slide in movable chamber 11, when push rod 3 moves down, fixed head 4 can move downward with push rod 3.
Push rod 8 is connected with driving arrangements such as cylinders, and when clamping tooling is positioned at original state, fixed head 4 is separated with securing member 2, and the top of push rod 8 is positioned at through hole, when the present invention works, first noise reduction cylindrical shell 7 is placed in cone-shaped cavity 9, until the outer wall of noise reduction cylindrical shell 7 and the contact internal walls of through hole, now start driving arrangement, cross bar 10 is made to start to move up, the chuck 6 being positioned at fixed head 4 end is then directly held the outer wall of noise reduction cylindrical shell 7 tightly make it along securing member 2 axis and is moved, when the lower end major part of noise reduction cylindrical shell 7 enters after in through hole, driving arrangement quits work, and certain spacing is left in the bottom of the end-to-end distance noise reduction cylindrical shell 7 of push rod 8, by pressing down parts, in order to what complete muffler, operation is press-fited to the work of inner core again, in the process that the multiple rubber rings 5 installed in its intermediate annular groove move down at noise reduction cylindrical shell 7 directly and its wall contacts, to prevent the outer wall of hush pipe body 7 rigid impaired, simultaneously when pressing down parts to inner core effect, noise reduction cylindrical shell 7 can continue to move down a segment distance in through hole, namely movement is cushioned, until the bottom of noise reduction cylindrical shell 7 contacts with the upper end of push rod 8, the continuation of restriction noise reduction cylindrical shell 7 is moved, and then guarantee that the stability that inner core press-fits period noise reduction cylindrical shell 7 is fixed, by push rod 8 top, act on while through-hole wall and chuck 6, realize 3 clampings to noise reduction cylindrical shell 7, thoroughly avoid noise reduction cylindrical shell 7 and press-fit the deflection displacement or circular runout that occur in process, inner core is made to ensure the fastening of noise reduction cylindrical shell 7 when pressing down, and then reach the object that core in raising press-fits efficiency,
Wherein, by to the hinged setting of fixed head 4 and then the live load substantially reducing driving arrangement, and offer movable chamber 11 at the middle part of fixed head 4, this movable chamber 11 preferably can be set to rectangle, and the bottom surface in this rectangular active chamber 11 is the arc be bent upwards, the roller 12 of push rod 3 end is trapped in movable cavity 11, namely push rod 3 is realized when moving down, the movement locus identical with lower arcuate surface is there is in roller 12 in movable chamber 11, and roller 12 and movable chamber 11 do not depart from, after fixed head 4 contacts completely with the upper surface of securing member 2, now chuck 6 is by thoroughly stuck for hush pipe 7 body.
As preferably, the internal diameter counting rubber ring 5 described in last is from top to bottom less than the external diameter of described noise reduction cylindrical shell 7.For improving the laying state of noise reduction cylindrical shell 7 in through hole, the present invention will count last rubber ring 5 from top to bottom and extend to through hole center, the internal diameter of this rubber ring 5 is made to be less than the external diameter of noise reduction cylindrical shell 7, namely when noise reduction cylindrical shell 7 is displaced downwardly to the tip contact of its bottom and push rod 8, certain deformation can be there is in this rubber ring 5, and the pulling force that deformation produces when press-fiting for core in cushioning noise reduction cylindrical shell 7 continue the trend of movement downwards, reduction noise reduction cylindrical shell 7 bottom impact that push rod 8 is caused simultaneously.
Fixed head 4 moves with push rod 3 and does the rectilinear motion on vertical direction, the movement locus of chuck 6 is consistent with fixed head 4, when noise reduction cylindrical shell 7 is placed in cone-shaped cavity 9, the outer wall of two chucks, 6 pairs of noise reduction cylindrical shells 7 carries out semi-packing type clamping, and moving down and move down with push rod 8, ensure noise reduction cylindrical shell 7 station that maintenance is correct cone-shaped cavity 9 in, the efficiency press-fited with core in improving.
Above-described detailed description of the invention; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only the specific embodiment of the present invention; the protection domain be not intended to limit the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. press a fixing means for blast pipe in core operation, it is characterized in that: comprise the following steps:
(A) noise reduction cylindrical shell (7) is placed in cone-shaped cavity (9), until the outer wall of noise reduction cylindrical shell (7) and the contact internal walls of through hole, now start driving arrangement, make cross bar (10) start to move down, the chuck (6) being positioned at fixed head (4) the end then direct outer wall by noise reduction cylindrical shell (7) is held the axis made it along securing member (2) tightly and is moved;
(B) in the process that moves down at noise reduction cylindrical shell (7) of rubber ring (5) directly and its wall contacts, to prevent the outer wall of hush pipe body (7) rigid impaired, simultaneously when pressing down parts to inner core effect, noise reduction cylindrical shell (7) can continue to move down a segment distance in through hole, namely movement is cushioned, until the bottom of noise reduction cylindrical shell (7) contacts with the upper end of push rod (8), the continuation of restriction noise reduction cylindrical shell (7) is moved, and then guarantee that inner core press-fits the stability of period noise reduction cylindrical shell (7) and fixes, by push rod (8) top, act on while through-hole wall and chuck (6), realize 3 clampings to noise reduction cylindrical shell (7), thoroughly avoid noise reduction cylindrical shell (7) and press-fit the deflection displacement or circular runout that occur in process, inner core is made to ensure the fastening of noise reduction cylindrical shell (7) when pressing down,
(C) by the hinged setting of fixed head (4) and then the live load substantially reducing driving arrangement, and offer movable chamber (11) at the middle part of fixed head (4), and the bottom surface in this rectangular active chamber (11) is the arc be bent upwards, the roller (12) of push rod (3) end is trapped in movable cavity (11), namely push rod (3) is realized when moving down, the movement locus identical with lower arcuate surface is there is in roller (12) in movable chamber (11), and roller (12) and movable chamber (11) do not depart from, after fixed head (4) contacts completely with the upper surface of securing member (2), now chuck (6) is by thoroughly stuck for noise reduction cylindrical shell (7),
(D) when the lower end major part of noise reduction cylindrical shell (7) enters after in through hole, driving arrangement quits work, and certain spacing is left in the bottom of the end-to-end distance noise reduction cylindrical shell (7) of push rod (8), then by pressing down parts, in order to what complete muffler, operation is press-fited to the work of inner core;
In above-mentioned steps, up big and down small cone-shaped cavity (9) is had at the middle part of described securing member (2), and be connected with through hole in the lower end of cone-shaped cavity (9), the internal diameter of described through hole is identical with the external diameter of noise reduction cylindrical shell (7), the inwall of through hole arranges cannelure, in cannelure, is longitudinally arranged side by side multiple rubber ring (5), also comprise mutual cross bar connected vertically (10) and push rod (8), be fixed with respectively through base (1) at the two ends of cross bar (10), the push rod (3) of securing member (2), the two ends of securing member (2) are hinged with fixed head (4), the end relative two fixed heads (4) is provided with chuck (6), movable chamber (11) is had at the middle part of described fixed head (4), and the bottom surface of described movable chamber (11) is the cambered surface be bent upwards, the end of described push rod (3) is fixed with the roller (12) that can be free to slide in movable chamber (11), when push rod (3) moves down, fixed head (4) can move downward with push rod (3).
2. a kind of fixing means of pressing blast pipe in core operation according to claim 1, is characterized in that: the internal diameter counting rubber ring (5) described in last is from top to bottom less than the external diameter of described noise reduction cylindrical shell (7).
3. a kind of fixing means of pressing blast pipe in core operation according to claim 1 and 2, is characterized in that: the cross section of described chuck (6) is circular arc, and at the bottom of the arc of two chucks (6) between spacing identical with the external diameter of noise reduction cylindrical shell (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510171647.5A CN104816281A (en) | 2015-04-13 | 2015-04-13 | Exhaust pipe fixing method in core pressing procedure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510171647.5A CN104816281A (en) | 2015-04-13 | 2015-04-13 | Exhaust pipe fixing method in core pressing procedure |
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| Publication Number | Publication Date |
|---|---|
| CN104816281A true CN104816281A (en) | 2015-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510171647.5A Pending CN104816281A (en) | 2015-04-13 | 2015-04-13 | Exhaust pipe fixing method in core pressing procedure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110625564A (en) * | 2019-11-22 | 2019-12-31 | 巢湖雅戈尔色纺科技有限公司 | Roller press-mounting tool of rotor spinning machine |
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| EP1759814A1 (en) * | 2005-09-05 | 2007-03-07 | Regie Autonome des Transports Parisiens | Manual apparatus for holding a muffler and method for replacing a removable part of such a muffler |
| CN201376179Y (en) * | 2009-04-08 | 2010-01-06 | 长春宏远电器设备制造有限责任公司 | Core installing machine |
| CN202607207U (en) * | 2012-06-29 | 2012-12-19 | 成都陵川特种工业有限责任公司 | Core installing machine capable of adapting to various automobile pre-mufflers |
| CN103029063A (en) * | 2012-12-06 | 2013-04-10 | 重庆智锐德科技有限公司 | Tension floating clamping device |
| CN203679670U (en) * | 2014-01-22 | 2014-07-02 | 无锡威孚力达催化净化器有限责任公司 | Perpendicular and eccentric press-mounting mechanism for cylinder purification sound eliminator packaging |
| CN204234594U (en) * | 2014-09-17 | 2015-04-01 | 镇江市恒源汽车零部件有限公司 | The assembly manufacturing device of automotive muffler |
-
2015
- 2015-04-13 CN CN201510171647.5A patent/CN104816281A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1759814A1 (en) * | 2005-09-05 | 2007-03-07 | Regie Autonome des Transports Parisiens | Manual apparatus for holding a muffler and method for replacing a removable part of such a muffler |
| CN201376179Y (en) * | 2009-04-08 | 2010-01-06 | 长春宏远电器设备制造有限责任公司 | Core installing machine |
| CN202607207U (en) * | 2012-06-29 | 2012-12-19 | 成都陵川特种工业有限责任公司 | Core installing machine capable of adapting to various automobile pre-mufflers |
| CN103029063A (en) * | 2012-12-06 | 2013-04-10 | 重庆智锐德科技有限公司 | Tension floating clamping device |
| CN203679670U (en) * | 2014-01-22 | 2014-07-02 | 无锡威孚力达催化净化器有限责任公司 | Perpendicular and eccentric press-mounting mechanism for cylinder purification sound eliminator packaging |
| CN204234594U (en) * | 2014-09-17 | 2015-04-01 | 镇江市恒源汽车零部件有限公司 | The assembly manufacturing device of automotive muffler |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110625564A (en) * | 2019-11-22 | 2019-12-31 | 巢湖雅戈尔色纺科技有限公司 | Roller press-mounting tool of rotor spinning machine |
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