CN115890118B - Be suitable for self-locking clamping device that is used for header welded of multiple specification - Google Patents
Be suitable for self-locking clamping device that is used for header welded of multiple specification Download PDFInfo
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- CN115890118B CN115890118B CN202310232694.0A CN202310232694A CN115890118B CN 115890118 B CN115890118 B CN 115890118B CN 202310232694 A CN202310232694 A CN 202310232694A CN 115890118 B CN115890118 B CN 115890118B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The utility model discloses a self-locking clamping device applicable to welding of a collecting pipe, which is applicable to multiple specifications and comprises a support, two guide shafts, a flexible clamping module and a V-shaped supporting block, wherein the support is provided with a plurality of guide shafts, and the guide shafts are fixedly connected with the support: the flexible clamping die is slidably arranged on the guide shaft; the V-shaped supporting blocks are arranged on the support; the flexible clamping module comprises a support, a lifting mechanism, a pressing mechanism and a driving device, wherein the driving device is a linear driving device, a shell part of the driving device is fixedly arranged on the support, a wedge block is arranged at the output end of the driving device, the lifting mechanism comprises a lifting table, the lifting table is positioned below the V-shaped lifting block, and the lower surface of the sliding block is matched with the wedge block. The compressing mechanism is two sets of symmetrically arranged link mechanisms. Therefore, the self-locking clamping device for welding the header pipes, which is applicable to multiple specifications, is applicable to fixing the header pipes with different lengths and different diameters.
Description
Technical Field
The utility model relates to the field of welding, in particular to a self-locking clamping device applicable to welding of a plurality of headers.
Background
The heat exchange device generally comprises a main pipeline and a plurality of radiating branch pipes, the joint of the main pipeline and the plurality of branch pipes is called a header, the branch pipes on the header are generally positioned on the same side of the header, and when the header is welded, the header itself can deform due to uneven heating and must be fixed by means of a tool. The utility model patent of China with the application number of 201820667258.0 discloses a welding fixture for a heat exchange header of a nuclear power station, which comprises a welding fixture bracket, wherein a left adjusting plate and a right adjusting plate are arranged on two sides of the welding fixture bracket, a supporting plate is arranged above the welding fixture bracket, a first V-shaped groove and a second V-shaped groove are concavely arranged in the middle of the supporting plate, the first V-shaped groove 11 and the second V-shaped groove are identical in shape, the difference is only the size, one of the two is larger than the other, and the installation of water inlet and outlet pipelines with different sizes can be met. However, it simply places pipes of different sizes in the V-groove, and although it is possible to restrict displacement of the pipes in the horizontal direction, it does not consider displacement of the pipes in the vertical direction, for example, because vibration or deformation due to stress of the pipes themselves at the time of welding is uncontrolled, which affects quality of the final product. Therefore, a tool which is applicable to headers of various specifications and can realize clamping in the vertical direction is needed.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: the self-locking clamping device for welding the header pipe is applicable to multiple specifications, and solves the problem that an existing tool cannot be applicable to multiple specifications.
In order to solve the technical problems, the utility model adopts the following technical scheme:
a self-locking clamping device applicable to welding of a header pipe with multiple specifications comprises a support, a V-shaped supporting block, two guide shafts and a flexible clamping module;
the two guide shafts are horizontally and fixedly arranged on the support in parallel, and the flexible clamping module is slidably arranged on the guide shafts;
the V-shaped supporting blocks are in strip shapes and are arranged on the support;
the flexible clamping module comprises a bracket, a lifting mechanism, a pressing mechanism and a driving device, wherein the driving device is a linear driving device, a shell part of the driving device is fixedly arranged on the bracket, a wedge-shaped block is arranged at the output end of the driving device, a plurality of inclined plane groups are arranged on the inclined plane surface of the wedge-shaped block, and each inclined plane group comprises a lifting inclined plane and a balancing inclined plane which are connected;
the lifting mechanism comprises a sliding block, an elastic device arranged above the sliding block and a lifting table arranged above the elastic device, wherein the lifting table is positioned below the V-shaped lifting block, and the lower surface of the sliding block is matched with the wedge-shaped block.
The pressing mechanism is a connecting rod mechanism which is symmetrically arranged, the connecting rod mechanism comprises a connecting rod, a pressing arm and a pressing block, the middle part of the pressing arm is arranged on the support through a pin shaft, the lower end of the connecting rod is hinged to the sliding block, the upper end of the connecting rod is hinged to the lower end of the pressing arm, and the pressing block is arranged at the upper end of the pressing arm.
On the basis of the technical scheme, the utility model can be improved as follows.
Preferably, the included angle between the balance inclined plane and the horizontal plane is smaller than the equivalent friction angle between the balance inclined plane and the sliding block.
Preferably, the elastic means is a gas spring or a spring.
Preferably, when the elastic means is a gas spring, the gas spring is connected to the lifting platform via a ball head.
Preferably, the gas spring is connected with the sliding block through threads.
Preferably, the support comprises a first side plate and a second side plate which are arranged in parallel, and the lifting mechanism and the pressing mechanism are arranged between the first side plate and the second side plate.
Preferably, the driving device is of a cylinder, an oil cylinder, a linear motor, a screw motor or a crankshaft connecting rod structure.
Compared with the prior art, the flexible clamping module capable of moving on the guide shaft can be used for fixing the headers with different lengths and different diameters in the horizontal direction and the vertical direction.
Drawings
FIG. 1 is a schematic view of a self-locking clamping device for header welding of multiple gauges in accordance with the present utility model;
FIG. 2 is a schematic perspective view of a flexible clamping module;
FIG. 3 is a schematic view of a flexible clamping module from a first perspective;
FIG. 4 is a schematic view of a second view of the flexible clamping module;
FIG. 5 is a schematic view of a third view of the flexible clamping module;
fig. 6 is a schematic view of a wedge block structure.
In the drawings, the list of component names indicated by the respective reference numerals is as follows:
1. a support;
2. v-shaped supporting blocks;
3. a guide shaft;
4. a flexible clamping module;
41. a bracket;
421. a slide block; 422. a gas spring; 423. ball head; 424. a lifting support;
431. a connecting rod; 432. a hold-down arm; 433. a compaction block; 435. a pin shaft;
44. a driving cylinder;
45. wedge blocks; 451. a slope surface; 4511. lifting the inclined plane; 4512. a balance inclined plane;
5. a header.
Detailed Description
The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.
Referring to fig. 1-6, the self-locking clamping device for welding the header 5, which is applicable to a plurality of specifications, comprises a support 1, two guide shafts 3, a flexible clamping module 4, and a V-shaped supporting block 2:
the two guide shafts 3 are horizontally and fixedly arranged on the support 1 in parallel, through holes matched with the guide shafts 3 are formed in the flexible clamping modules 4, and the flexible clamping modules 4 are slidably arranged on the guide shafts 3 through the through holes;
the V-shaped supporting blocks 2 are in strip shapes, and the V-shaped supporting blocks 2 are arranged on the support 1;
the flexible clamping module 4 comprises a bracket 41, a lifting mechanism, a pressing mechanism and a driving air cylinder 44, wherein the through hole is formed in the bracket 41, a shell part of the driving air cylinder 44 is fixedly arranged on the bracket 41, a wedge-shaped block 45 is arranged at the output end of the driving air cylinder 44, a plurality of inclined plane groups are arranged on an inclined plane 451 of the wedge-shaped block 45, and each inclined plane group comprises a lifting inclined plane 4511 and a balancing inclined plane 4512 which are connected;
the lifting mechanism comprises a sliding block 421, a gas spring 422 arranged above the sliding block 421 and a lifting platform 424 arranged above the gas spring 422, wherein the lifting platform 424 is positioned below the V-shaped lifting block 2, and the lower surface of the sliding block 421 is matched with the wedge-shaped block 45. The included angle between the balance ramp 4512 and the horizontal plane is smaller than the equivalent friction angle between the balance ramp 4512 and the slider 421.
The pressing mechanism is a two-set symmetrical link mechanism, the link mechanism comprises a connecting rod 431, a pressing arm 432 and a pressing block 433, the middle part of the pressing arm 432 is arranged on the bracket 41 through a pin roll 435, the lower end of the connecting rod 431 is hinged on the sliding block 421, the upper end of the connecting rod 431 is hinged at the lower end of the pressing arm 432, and the pressing block 433 is arranged at the upper end of the pressing arm 432. The pressing mechanism is driven by a slide 421 to realize synchronous clamping movement of the header 5.
The support 41 comprises a first side plate and a second side plate which are arranged in parallel, and the lifting mechanism and the pressing mechanism are arranged between the first side plate and the second side plate. Since the slide 421 is restricted between the first side plate and the second side plate, it cannot move in the horizontal direction, and the guide grooves in the vertical direction are provided inside the first side plate and the second side plate, so that the slide 421 moves in the guide grooves, and thus it is possible to ensure that the slide 421 can move only in the vertical direction.
When the driving cylinder 44 pushes the wedge 45 to move in the horizontal direction, the lifting surface on the slope surface 451 of the wedge 45 is inserted under the slide block 421, so that the slide block 421 is forced to move in the vertical direction, and the lifting platform 424 is abutted against the bottom of the V-shaped lifting block 2, when the balance slope 4512 on the slope surface 451 of the wedge 45 reaches under the slide block 421, if the action of the driving cylinder 44 is stopped, because the included angle between the balance slope 4512 and the horizontal plane is smaller than the equivalent friction angle between the balance slope 4512 and the slide block 421, the motion of the slide block 421 in the vertical direction can be self-locked by friction;
the gas spring 422 can elastically shrink in the vertical direction, the top end of the gas spring 422 is provided with a ball head 423, the ball head 423 is mounted at the lower end of the lifting support 424, flexible connection between the gas spring 422 and the lifting support 424 is achieved, and even if the lower surface of the V-shaped supporting block 2 is not perpendicular to the axial direction of the gas spring 422, the lifting support 424 can also be matched with the lower surface of the V-shaped supporting block 2 due to the connection relation of the ball head 423, so that the gas spring 422 is ensured to be always kept in a vertical state in the axial direction.
If the wedge 45 is withdrawn, the air spring 422 can drive the slide 421 to extend in the vertical direction, so as to realize the reset of the slide 421;
the reaction force caused by welding deformation of the header 5 acts on the V-shaped supporting blocks 2 and the flexible clamping modules 4, and the force acting on the flexible clamping modules 4 is finally transferred to be pressure on the V-shaped supporting blocks 2 through the contact surfaces between the flexible clamping modules 4 and the V-shaped supporting blocks 2, so that the reaction force and the reaction force are mutually offset, and the clamping effect on the header 5 is ensured. If the V-shaped supporting blocks 2 are not arranged, the welding deformation force is transmitted to the guide shaft 3, so that the guide shaft 3 deforms in a deflection manner, if the guide shaft 3 deforms, the clamping of the header 5 deforms, and the welding deformation of the header 5 cannot be restrained.
The flexible clamping module 4 is designed to drive the air cylinder 44 to push the wedge block 45, the inclined surface of the wedge block 45 is designed according to an equivalent friction angle, the wedge block is matched with the sliding block 421 to realize upward movement of the sliding block 421, and meanwhile, mechanical friction self-locking is formed at a clamping position, so that welding deformation of headers 5 with different specifications is overcome; the driving cylinder 44 drives the symmetrically arranged connecting rods 431 and the pressing arms 432 to enable the pressing blocks on two sides to synchronously clamp the header 5, so that the header 5 is prevented from being biased to influence positioning. After the welding is finished, the driving cylinder 44 pulls the wedge block 45 to retract, and the air spring 422 pushes the sliding block 421 to move downwards to reset the clamping device.
The device realizes symmetrical clamping, automatic clamping and opening and friction mechanical self-locking, realizes automatic positioning of the collecting pipe 5, overcomes welding deformation, ensures stable welding seams and improves the post-welding forming size of products.
One end of the air spring 422 is in threaded connection with the sliding block 421, and the other end of the air spring 422 is provided with the ball head 423 and is arranged in the storage groove of the flexible clamping module 4.
The gas spring 422 is flexibly connected by the ball head 423, the acting force generated by the ball head 423 in the storage groove is parallel to the axial direction of the gas spring 422, and the reset smoothness and the service life of the gas spring 422 are improved.
The flexible clamping module 4 can move on the guide shaft 3 to meet the positioning requirements of the headers 5 with different lengths; the V-shaped supporting blocks 2 can be adapted to the headers 5 with different diameters by means of the V-shaped structures, and automatic centering and positioning can be realized, so that the device can be adapted to positioning and clamping of the headers 5 with different lengths and different diameters. The four-point compression of the header 5 is realized by means of the compression mechanism and the V-shaped supporting blocks 2, and meanwhile, mechanical friction self-locking is formed at the clamping position, so that the header 5 is firmly maintained in an original state; the symmetrically arranged link mechanisms are driven to enable the compression blocks 433 on two sides to synchronously clamp the header 5, so that the header 5 is prevented from being biased to influence positioning.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.
Claims (6)
1. Be suitable for self-locking clamping device that is used for header welding of a plurality of specifications, including support, two guiding axles, its characterized in that still includes V type riding block, flexible clamping module:
the two guide shafts are horizontally and fixedly arranged on the support in parallel, and the flexible clamping module is slidably arranged on the guide shafts;
the V-shaped supporting blocks are in strip shapes and are arranged on the support;
the flexible clamping module comprises a bracket, a lifting mechanism, a pressing mechanism and a driving device, wherein the driving device is a linear driving device, a shell part of the driving device is fixedly arranged on the bracket, a wedge-shaped block is arranged at the output end of the driving device, a plurality of inclined plane groups are arranged on the inclined plane surface of the wedge-shaped block, and each inclined plane group comprises a lifting inclined plane and a balancing inclined plane which are connected;
the lifting mechanism comprises a sliding block, an elastic device arranged above the sliding block and a lifting table arranged above the elastic device, wherein the lifting table is positioned below the V-shaped lifting block, and the lower surface of the sliding block is matched with the wedge-shaped block;
the pressing mechanism is two sets of symmetrically arranged connecting rod mechanisms, each connecting rod mechanism comprises a connecting rod, a pressing arm and a pressing block, the middle part of each pressing arm is arranged on the corresponding support through a pin shaft, the lower end of each connecting rod is hinged to the corresponding sliding block, the upper end of each connecting rod is hinged to the lower end of each pressing arm, and each pressing block is arranged at the upper end of each pressing arm;
the included angle between the balance inclined plane and the horizontal plane is smaller than the equivalent friction angle between the balance inclined plane and the sliding block;
when the driving device pushes the wedge block to move in the horizontal direction, a lifting surface on the inclined surface of the wedge block is inserted below the sliding block, so that the sliding block is forced to move in the vertical direction, the lifting support table is abutted against the bottom of the V-shaped support block, and meanwhile, the pressing mechanism is driven by the sliding block, so that synchronous clamping movement of the collecting pipe is realized;
after welding is finished, the driving device pulls the wedge block to retract, and the elastic device pushes the sliding block to move downwards to reset the clamping device.
2. The self-locking clip for header welding of claim 1, wherein the resilient means is a gas spring.
3. The self-locking clamping device for header welding of claim 2, wherein the gas spring is connected to the lift table via a ball head.
4. The self-locking clamping device for header welding of claim 2, wherein the gas spring is threadably connected to the slider.
5. The self-locking clamping device for welding headers according to claim 1, wherein the bracket comprises a first side plate and a second side plate which are arranged in parallel, and the lifting mechanism and the pressing mechanism are arranged between the first side plate and the second side plate.
6. The self-locking clamping device for welding headers according to claim 1, wherein the driving device is a cylinder, an oil cylinder, a linear motor, a screw motor or a crankshaft connecting rod structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310232694.0A CN115890118B (en) | 2023-03-13 | 2023-03-13 | Be suitable for self-locking clamping device that is used for header welded of multiple specification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310232694.0A CN115890118B (en) | 2023-03-13 | 2023-03-13 | Be suitable for self-locking clamping device that is used for header welded of multiple specification |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115890118A CN115890118A (en) | 2023-04-04 |
| CN115890118B true CN115890118B (en) | 2023-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310232694.0A Active CN115890118B (en) | 2023-03-13 | 2023-03-13 | Be suitable for self-locking clamping device that is used for header welded of multiple specification |
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| CN (1) | CN115890118B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204454232U (en) * | 2015-01-19 | 2015-07-08 | 巨力索具股份有限公司 | A kind of stop rope device for steel rope self-locking |
| CN218363148U (en) * | 2022-10-20 | 2023-01-24 | 珠海金蔚制冷配件科技有限公司 | Air conditioner refrigeration copper pipe mistake proofing position erection equipment |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2779337Y (en) * | 2004-08-26 | 2006-05-10 | 北京新联铁科贸有限公司 | Automatic wheel-pair gudgeon inspector |
| US8496238B1 (en) * | 2009-01-26 | 2013-07-30 | T&T Engineering Services, Inc. | Tubular gripping apparatus with locking mechanism |
| CN105855959B (en) * | 2016-05-30 | 2019-03-12 | 瑞立集团瑞安汽车零部件有限公司 | Pneumatic self-locking clamping device |
| CN210880983U (en) * | 2019-09-29 | 2020-06-30 | 绵阳国顺电气有限公司 | Debugging mould for glass fiber reinforced plastic production |
| CN211661540U (en) * | 2019-12-03 | 2020-10-13 | 山东金润德新材料科技股份有限公司 | Automatic clamping device of stainless steel pipe fitting cutting-off machine |
| CN113800433B (en) * | 2021-09-15 | 2023-03-24 | 国网山东省电力公司建设公司 | Auxiliary installation device for side sleeve of converter transformer valve |
-
2023
- 2023-03-13 CN CN202310232694.0A patent/CN115890118B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204454232U (en) * | 2015-01-19 | 2015-07-08 | 巨力索具股份有限公司 | A kind of stop rope device for steel rope self-locking |
| CN218363148U (en) * | 2022-10-20 | 2023-01-24 | 珠海金蔚制冷配件科技有限公司 | Air conditioner refrigeration copper pipe mistake proofing position erection equipment |
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| CN115890118A (en) | 2023-04-04 |
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