CN220279395U - Circular tube clamping mechanism - Google Patents
Circular tube clamping mechanism Download PDFInfo
- Publication number
- CN220279395U CN220279395U CN202321509830.8U CN202321509830U CN220279395U CN 220279395 U CN220279395 U CN 220279395U CN 202321509830 U CN202321509830 U CN 202321509830U CN 220279395 U CN220279395 U CN 220279395U
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- Prior art keywords
- nut
- circular tube
- screw rod
- clamping mechanism
- clamping
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- 230000007246 mechanism Effects 0.000 title claims abstract description 48
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims description 10
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of quick positioning and clamping devices for round pipes, in particular to a round pipe clamping mechanism which comprises a screw rod, a nut in threaded transmission connection with the screw rod, a connecting seat in rotary connection with one end of the screw rod, a plurality of linkage mechanisms hinged to the nut and the connecting seat, and clamping blocks connected with the linkage mechanisms, wherein the linkage mechanisms are uniformly distributed along the ring shape of the nut, and the clamping blocks are matched with the inner wall of an internally supported and clamped round pipe. When the nut clamping mechanism is used, the circular tube clamping mechanism stretches into a circular tube, the screw rod is in threaded transmission connection with the nut, the screw rod is rotated under the condition of fixing the nut, the connecting seat is close to the nut, the linkage mechanism drives the clamping blocks to abut against the inner wall of the circular tube, the clamping blocks are matched with the inner wall of the inner support clamping circular tube, and the plurality of linkage mechanisms are evenly distributed along the annular shape of the nut, so that the screw rod is upright at the center of the circular tube, and the requirement of rapidly positioning the center of the circular tube is met.
Description
Technical Field
The utility model relates to the technical field of quick positioning and clamping devices for round tubes, in particular to a round tube clamping mechanism.
Background
The existing equipment with circular tube in and out, such as a surface cooler, is also required to be installed into a machine shell, a pipe orifice through hole is required to be formed in the machine shell and used for allowing the circular tube to penetrate to the outside of the shell so as to be connected, however, deviation exists in the installation position of the circular tube in the production process of each surface cooler, deviation exists in the position of the hole opening of the pipe orifice through hole, if the pipe orifice through hole is directly enlarged, although the circular tube penetrating of all the surface coolers is met, a large gap between the pipe orifice through hole and the circular tube is required to be filled by adopting patch welding, the efficiency is reduced, and the cost is increased. If the circle center of the circular tube can be rapidly positioned, the relative position of the circle center of the circular tube in the surface cooler can be read by means of the existing test equipment, so that the deviation of the opening of the through hole of the pipe orifice in the machine shell is reduced; the prior art is lack of a clamping device capable of rapidly positioning the center of a circular tube.
Disclosure of Invention
In order to overcome the defects and shortcomings in the prior art, the utility model aims to provide a round tube clamping mechanism.
The aim of the utility model is achieved by the following technical scheme: the utility model provides a pipe clamping mechanism, includes the lead screw, with the nut of lead screw thread drive connection, with the connecting seat of one end rotation connection of lead screw, a plurality of articulated in the link gear of nut and connecting seat and the tight piece of clamp that is connected with the link gear, a plurality of link gear follow nut annular evenly distributed, a plurality of clamp pieces cooperation are used for the inner wall of interior tight pipe of propping clamp.
Preferably, the circular tube clamping mechanism further comprises an adjusting hand wheel fixedly connected with the other end of the screw rod.
Preferably, one end of the screw rod is fixedly connected with a rotary male ball head, the connecting seat comprises a connecting block hinged with the linkage mechanism and a rotary female ball head fixedly connected with the connecting block, a ball head groove is formed in one end of the rotary female ball head, and the rotary male ball head is rotationally embedded in the ball head groove.
Preferably, the connecting block is provided with an inner screw hole, and the other end of the rotary ball head is provided with an external screw thread matched with the inner screw hole.
Preferably, the linkage mechanism comprises a first connecting rod hinged with the nut and a second connecting rod hinged with the connecting seat, the first connecting rod is hinged with the second connecting rod, and one end of the first connecting rod, far away from the nut, is hinged with the clamping block.
Preferably, the clamping block is provided with convex teeth on one surface for abutting against the inner wall of the circular tube.
Preferably, the circular tube clamping mechanism further comprises a sheet metal connecting part fixedly connected with the nut, and the sheet metal connecting part is provided with a yielding through hole for the screw rod to penetrate through the sheet metal connecting part.
The utility model has the beneficial effects that: the circular tube clamping mechanism adopts the screw rod, the nut, the connecting seat, the plurality of linkage mechanisms and the clamping blocks, when the circular tube clamping mechanism is used, the circular tube clamping mechanism stretches into a circular tube, the screw rod is in threaded transmission connection with the nut, the screw rod is rotated under the condition of fixing the nut, the connecting seat is close to the nut, the linkage mechanism drives the clamping blocks to abut against the inner wall of the circular tube, the plurality of clamping blocks are matched with the inner support to clamp the inner wall of the circular tube, and the plurality of linkage mechanisms are uniformly distributed along the ring shape of the nut, so that the screw rod is upright at the center of the circular tube, and the requirement of rapidly positioning the center of the circular tube is met.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is an exploded schematic view of the present utility model;
the reference numerals are: 1. a screw rod; 2. a nut; 3. a connecting seat; 31. a connecting block; 32. rotating the female ball head; 4. a linkage mechanism; 41. a first link; 42. a second link; 5. a clamping block; 6. an adjusting hand wheel; 7. rotating the male ball head; 8. ball grooves; 9. an inner screw hole; 10. an external thread; 11. convex teeth; 12. a sheet metal connecting piece; 13. and giving way to the through hole.
Detailed Description
The present utility model will be further described with reference to examples and drawings, which are not intended to be limiting, for the understanding of those skilled in the art.
As shown in fig. 1-2, the circular tube clamping mechanism comprises a screw rod 1, a nut 2 in threaded transmission connection with the screw rod 1, a connecting seat 3 in rotary connection with one end of the screw rod 1, a plurality of linkage mechanisms 4 hinged to the nut 2 and the connecting seat 3, and clamping blocks 5 connected with the linkage mechanisms 4, wherein the linkage mechanisms 4 are uniformly distributed along the ring shape of the nut 2, and the clamping blocks 5 are matched with the inner wall of the circular tube for internal bracing and clamping.
This pipe clamping mechanism adopts lead screw 1, nut 2, connecting seat 3, a plurality of link gear 4 and clamp block 5, and during the use, pipe clamping mechanism stretches into the pipe, and lead screw 1 and nut 2 screw drive are connected, rotate lead screw 1 under the condition of fixing nut 2, make connecting seat 3 be close to nut 2, and link gear 4 drive clamp block 5 is to the pipe inner wall support and lean on, and the inner wall of pipe is tightly pressed from both sides in the cooperation of a plurality of clamp blocks 5, because a plurality of link gear 4 are followed nut 2 annular evenly distributed, and finally lead screw 1 just stands in the pipe centre of a circle, satisfies the demand of quick location pipe centre of a circle.
Further, the circular tube clamping mechanism further comprises an adjusting hand wheel 6 fixedly connected with the other end of the screw rod 1; the screw rod 1 is driven to rotate by rotating the adjusting hand wheel 6, so that the use is more convenient.
Further, one end of the screw rod 1 is fixedly connected with a rotary male ball head 7, the connecting seat 3 comprises a connecting block 31 hinged with the linkage mechanism 4 and a rotary female ball head 32 fixedly connected with the connecting block 31, a ball head groove 8 is formed in one end of the rotary female ball head 32, and the rotary male ball head 7 is rotationally embedded in the ball head groove 8; the screw rod 1 and the connecting seat 3 are rotatably arranged through the rotation fit of the rotary male ball head 7 and the rotary female ball head 32.
Further, the connecting block 31 is provided with an inner screw hole 9, and the other end of the rotating ball head 32 is provided with an external screw thread 10 in threaded fit with the inner screw hole 9, so that the connecting block 31 and the rotating ball head 32 are detachably connected, and the connecting block 31 and the rotating ball head 32 are convenient to assemble/disassemble.
Further, the linkage mechanism 4 comprises a first connecting rod 41 hinged with the nut 2 and a second connecting rod 42 hinged with the connecting seat 3, the first connecting rod 41 and the second connecting rod 42 are hinged, and one end of the first connecting rod 41 away from the nut 2 is hinged with the clamping block 5. When the nut 2 and the connecting seat 3 are close to each other, the first connecting rod 41 and the second connecting rod 42 drive the clamping block 5 to lift.
Further, the convex teeth 11 are arranged on one surface of the clamping block 5, which is used for abutting against the inner wall of the circular tube, so that the clamping block 5 is prevented from being out of position when the clamping block 5 is used for internally supporting and clamping the circular tube.
Further, the circular tube clamping mechanism further comprises a sheet metal connecting piece 12 fixedly connected with the nut 2, and the sheet metal connecting piece 12 is provided with a yielding through hole 13 for the screw rod 1 to penetrate through the sheet metal connecting piece 12; the available sheet metal connector 12 is fixed with existing test equipment so that the pipe clamping mechanism assists the existing test equipment in rapidly positioning the center of a pipe.
The above embodiments are preferred embodiments of the present utility model, and besides, the present utility model may be implemented in other ways, and any obvious substitution is within the scope of the present utility model without departing from the concept of the present utility model.
Claims (7)
1. A pipe clamping mechanism which is characterized in that: the device comprises a screw rod, a nut in threaded transmission connection with the screw rod, a connecting seat in rotary connection with one end of the screw rod, a plurality of linkage mechanisms hinged to the nut and the connecting seat, and clamping blocks connected with the linkage mechanisms, wherein the linkage mechanisms are uniformly distributed along the ring shape of the nut, and the clamping blocks are matched with the inner wall of the inner supporting clamping circular tube.
2. The barrel clamping mechanism of claim 1, wherein: the round tube clamping mechanism further comprises an adjusting hand wheel fixedly connected with the other end of the screw rod.
3. The barrel clamping mechanism of claim 1, wherein: one end fixedly connected with rotation male bulb of lead screw, the connecting seat include with the articulated connecting block of link gear and with the rotatory female bulb of connecting block fixed connection, the bulb recess has been seted up to the one end of rotatory female bulb, rotatory male bulb rotates to inlay locates the bulb recess.
4. A round tube gripping mechanism as defined in claim 3, wherein: an inner screw hole is formed in the connecting block, and an external thread matched with the inner screw hole in a threaded manner is arranged at the other end of the rotary female ball head.
5. The barrel clamping mechanism of claim 1, wherein: the linkage mechanism comprises a first connecting rod hinged with the nut and a second connecting rod hinged with the connecting seat, wherein the first connecting rod is hinged with the second connecting rod, and one end, far away from the nut, of the first connecting rod is hinged with the clamping block.
6. The barrel clamping mechanism of claim 1, wherein: the clamping block is used for being provided with convex teeth against one surface of the inner wall of the circular tube.
7. The barrel clamping mechanism of claim 1, wherein: the circular tube clamping mechanism further comprises a sheet metal connecting part fixedly connected with the nut, and the sheet metal connecting part is provided with a yielding through hole for the screw rod to penetrate through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321509830.8U CN220279395U (en) | 2023-06-13 | 2023-06-13 | Circular tube clamping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321509830.8U CN220279395U (en) | 2023-06-13 | 2023-06-13 | Circular tube clamping mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220279395U true CN220279395U (en) | 2024-01-02 |
Family
ID=89331053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321509830.8U Active CN220279395U (en) | 2023-06-13 | 2023-06-13 | Circular tube clamping mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220279395U (en) |
-
2023
- 2023-06-13 CN CN202321509830.8U patent/CN220279395U/en active Active
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |