CN210788992U - Heat exchanger workpiece fixing device - Google Patents
Heat exchanger workpiece fixing device Download PDFInfo
- Publication number
- CN210788992U CN210788992U CN201921332189.9U CN201921332189U CN210788992U CN 210788992 U CN210788992 U CN 210788992U CN 201921332189 U CN201921332189 U CN 201921332189U CN 210788992 U CN210788992 U CN 210788992U
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- China
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- movable pin
- heat exchanger
- movable
- movable sleeve
- clamping jaw
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Abstract
A heat exchanger workpiece fixing device comprises a clamping jaw, a movable sleeve, a body, a push rod, a movable pin, a jackscrew and a spring, wherein a straight groove in the vertical direction is formed in the body; the clamping jaw is sleeved outside the body, the top of the clamping jaw is provided with a plurality of vertical slits, the lower pipe end of the workpiece straight pipe can be allowed to enter and exit the plurality of vertical slits in a free state of the plurality of vertical slits, the lower pipe end of the workpiece straight pipe is clamped when the plurality of vertical slits are closed, and the lower end of the clamping jaw is connected with the body; the movable sleeve is sleeved outside the body and the clamping jaws, two ends of the movable pin are fixed on the movable sleeve, when the movable pin moves to the upper end of the linear groove, the upper portion of the sleeve enables a plurality of clamping jaws to be vertically slotted and closed, and when the movable pin moves to the upper end of the linear groove, the movable sleeve leaves a plurality of vertical slots to enable the movable sleeve to be in a free state.
Description
Technical Field
The utility model relates to a heat exchanger work piece fixing device.
Background
The tube expander is used for expanding the diameters of a plurality of heat exchanger tubes arranged in the radiating fins to enable the heat exchanger tubes to be tightly combined with the radiating fins, so that looseness is avoided, the heat conducting performance of the heat exchanger is improved, and in addition, the end parts of the tubes are flared and flanged to facilitate next working procedures.
When the tube expander expands the tube without shrinkage, the two ends of the U tube of the workpiece need to be clamped, and the U tube is forced not to shrink, so that the purpose of saving materials is achieved. In the prior art, the heat exchanger work piece mostly is the U tubular form, and the U type pipe end fixing device of U pipe introduces also a lot, however, along with the development of heat exchanger technique, has appeared and has all been the heat exchanger of straight tube, also has the heat exchanger that contains the U pipe promptly and contain the straight tube again, and about the lower extreme fixing device introduction of straight tube but do not.
Disclosure of Invention
The utility model aims to solve the technical problem that overcome prior art's above-mentioned defect and provide a heat exchanger work piece fixing device, make its simple structure, the reliability is high.
The utility model provides a technical scheme that above-mentioned technical problem adopted does:
a heat exchanger workpiece fixing device comprises a clamping jaw, a movable sleeve, a body, a push rod, a movable pin, a jackscrew and a spring, wherein a straight groove in the vertical direction is formed in the body; the clamping jaw is sleeved outside the body, the top of the clamping jaw is provided with a plurality of vertical slits, the lower pipe end of the workpiece straight pipe can be allowed to enter and exit the plurality of vertical slits in a free state of the plurality of vertical slits, the lower pipe end of the workpiece straight pipe is clamped when the plurality of vertical slits are closed, and the lower end of the clamping jaw is connected with the body; the movable sleeve is sleeved outside the body and the clamping jaws, two ends of the movable pin are fixed on the movable sleeve, when the movable pin moves to the upper end of the linear groove, the upper portion of the movable sleeve enables a plurality of clamping jaws to be vertically slotted and closed, and when the movable pin moves to the upper end of the linear groove, the movable sleeve leaves a plurality of vertical slots to enable the movable sleeve to be in a free state.
Preferably, the push rod passes through the movable pin and enters the spring, so that the spring can be positioned by one end of the push rod to prevent the spring from being disturbed.
Preferably, the upper portion of the push rod is in threaded connection with the movable pin, so that the push rod is easy to install.
Preferably, the jackscrew is in threaded connection with the body, so that the jackscrew is easy to install.
Preferably, the lower end of the clamping jaw is in threaded connection with the body, so that the clamping jaw is easy to mount.
Preferably, two sides of the movable sleeve are provided with through holes, and two ends of the movable pin penetrate through the through holes on the two sides and are fixed on the movable sleeve, so that the movable pin is convenient to fix.
Compared with the prior art, the utility model has the advantages of: the lower end of the straight pipe can be well fixed.
Drawings
Fig. 1 is a schematic perspective view of a workpiece fixing device for a heat exchanger according to an embodiment of the present invention.
Fig. 2 is a cross-sectional view of the heat exchanger workpiece fixing device according to the embodiment of the present invention.
Fig. 3 is a schematic view of a three-dimensional structure of the heat exchanger workpiece fixing device according to the embodiment of the present invention in a state where the movable sleeve is removed and the clamping jaws are closed.
Fig. 4 is a schematic view of a three-dimensional structure of the heat exchanger workpiece fixing device according to the embodiment of the present invention when the movable sleeve is removed and the clamping jaws are in an open state.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
As shown in fig. 1 and 2, the heat exchanger workpiece fixing device comprises a clamping jaw 1, a movable sleeve 2, a body 3, a push rod 4, a movable pin 5, a jackscrew 6 and a spring 7.
As shown in fig. 2 and 3, the body 3 is provided with a linear groove 301 in the vertical direction, the push rod 4 is sleeved in the body 1, the upper portion of the push rod is in threaded connection with the movable pin 5 and penetrates through the movable pin 5 to enter the spring 7 for a certain distance, the movable pin 5 transversely penetrates through the linear groove 301 of the body 3, the jackscrew 6 is installed in the upper end of the body 3 and is in threaded connection with the body 3, the spring 7 is arranged in the body 3, the upper end is limited by the jackscrew 6, and the lower end is limited by the movable pin 5.
The clamping jaw 1 is sleeved outside the body 1, as shown in fig. 4, the head part of the clamping jaw 1 is provided with a plurality of vertical slits 101, the lower pipe end of the workpiece straight pipe can be allowed to be put in or taken out when the plurality of vertical slits 101 are in a free state, and the lower end of the clamping jaw 1 is in threaded connection with the body 3, as shown in fig. 2.
The movable sleeve 2 is sleeved outside the clamping jaw 1 in a penetrating mode, a through hole 201 is formed in the movable sleeve, and the movable pin 5 can just penetrate through the through hole.
When the heat exchanger straight pipe clamping device is used, the push rod is connected with a pushing piece (not shown), the lower end of the straight pipe of a heat exchanger workpiece enters the clamping jaw 1 of the fixing device, when the pushing piece pushes the push rod 4 of the fixing device upwards, the push rod 4 drives the movable pin 5 to move upwards along the linear groove 301, the movable pin 5 drives the movable sleeve 2 to move upwards, the upper end of the clamping jaw 1 is tightened, and the lower pipe end of the straight pipe of the workpiece is clamped.
When the pushing piece releases the push rod 4, under the action of the spring force of the spring 7, the push rod 4 moves downwards, so that the push rod 4 drives the movable pin 5 to move downwards along the linear groove 301 and drives the movable sleeve 2 to move downwards, the upper end of the clamping jaw 1 is released, the free state is recovered, and the lower pipe end of the workpiece straight pipe is released.
Claims (6)
1. The utility model provides a heat exchanger work piece fixing device which characterized in that: the clamping jaw type push rod clamping device comprises a clamping jaw, a movable sleeve, a body, a push rod, a movable pin, a jackscrew and a spring, wherein a straight groove in the vertical direction is formed in the body, the movable pin transversely penetrates through the straight groove of the body, the push rod penetrates through the body, the upper part of the push rod is connected with the movable pin, the jackscrew is installed in the upper end of the body, the spring is arranged in the body, the upper end of the spring is limited by the jackscrew, and the lower end of the spring is limited by the movable pin; the clamping jaw is sleeved outside the body, the top of the clamping jaw is provided with a plurality of vertical slits, the lower pipe end of the workpiece straight pipe can be allowed to enter and exit the plurality of vertical slits in a free state of the plurality of vertical slits, the lower pipe end of the workpiece straight pipe is clamped when the plurality of vertical slits are closed, and the lower end of the clamping jaw is connected with the body; the movable sleeve is sleeved outside the body and the clamping jaws, two ends of the movable pin are fixed on the movable sleeve, when the movable pin moves to the upper end of the linear groove, the upper portion of the movable sleeve enables a plurality of clamping jaws to be vertically slotted and closed, and when the movable pin moves to the upper end of the linear groove, the movable sleeve leaves a plurality of vertical slots to enable the movable sleeve to be in a free state.
2. The heat exchanger workpiece fixture of claim 1, wherein: the push rod penetrates through the movable pin and enters the spring.
3. The heat exchanger workpiece fixture of claim 1, wherein: the upper part of the push rod is in threaded connection with the movable pin.
4. The heat exchanger workpiece fixture of claim 1, wherein: the jackscrew is in threaded connection with the body.
5. The heat exchanger workpiece fixture of claim 1, wherein: the lower end of the clamping jaw is in threaded connection with the body.
6. The heat exchanger workpiece fixture of claim 1, wherein: through holes are formed in two sides of the movable sleeve, and two ends of the movable pin penetrate through the through holes in the two sides and are fixed on the movable sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921332189.9U CN210788992U (en) | 2019-08-16 | 2019-08-16 | Heat exchanger workpiece fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921332189.9U CN210788992U (en) | 2019-08-16 | 2019-08-16 | Heat exchanger workpiece fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210788992U true CN210788992U (en) | 2020-06-19 |
Family
ID=71236018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921332189.9U Active CN210788992U (en) | 2019-08-16 | 2019-08-16 | Heat exchanger workpiece fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210788992U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112847414A (en) * | 2021-01-29 | 2021-05-28 | 中国原子能科学研究院 | Grabbing mechanism |
-
2019
- 2019-08-16 CN CN201921332189.9U patent/CN210788992U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112847414A (en) * | 2021-01-29 | 2021-05-28 | 中国原子能科学研究院 | Grabbing mechanism |
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