CN212469503U - Clamping device of double-pipe expander - Google Patents
Clamping device of double-pipe expander Download PDFInfo
- Publication number
- CN212469503U CN212469503U CN202020849560.5U CN202020849560U CN212469503U CN 212469503 U CN212469503 U CN 212469503U CN 202020849560 U CN202020849560 U CN 202020849560U CN 212469503 U CN212469503 U CN 212469503U
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- push pedal
- supporting seat
- collet chuck
- clamping device
- sleeve
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Abstract
The utility model relates to a clamping device of double-barrelled electric tube expander, including supporting seat and push pedal, be equipped with two sleeves between supporting seat and the push pedal, sleeve pipe one end is fixed in the backup pad, and the other end runs through the push pedal, be equipped with two cylinders between supporting seat and the push pedal, the cylinder is fixed in the supporting seat, the piston rod and the push pedal of cylinder are connected, the sleeve pipe front end is equipped with collet chuck, be equipped with in the push pedal cup joint in the sleeve outside the cover pipe, telescopic internal diameter is less than collet chuck's external diameter. During the use, treat that expand tube head stretches into collet chuck in, the cylinder work drives the sleeve and removes, realizes pressing from both sides tightly collet chuck, and then realizes treating the tight location of clamp of expanding tube head, whole clamping process is swift, and it is excellent to press from both sides tight effect, the developing of the subsequent handling of being convenient for. The utility model relates to a rationally, be fit for promoting on a large scale.
Description
Technical Field
The utility model relates to a subassembly of electric tube expander especially relates to a clamping device of double-barrelled electric tube expander.
Background
The connection of the heat exchange tube and the tube plate mainly comprises expansion joint, welding, expansion welding and other methods, and the expansion joint method can be divided into mechanical expansion joint, hydraulic expansion joint, rubber expansion joint, explosion expansion joint and other methods. In the above method, mechanical tube expansion is relatively common.
The clamping of pipe has been a difficult problem in the industry during the mechanical pipe expansion operation. When the pipe expander expands the pipe, the pipe to be expanded can shrink, and the like, so that a plurality of pipes need to be well fixed. However, the clamping device for the straight pipe end of the existing pipe expander is unstable in clamping and difficult to control, and the clamping consistency is poor.
In the prior art, a pipe expander clamps a pipe by using a clamping jaw, and then extends into an inner hole of the pipe through an expansion ball with the inner radius larger than that of the inner hole of the pipe, so that the end part of the pipe is expanded. At present, a clamping mechanism of a pipe expander adopts a clamping jaw, the head of the clamping jaw is in an open state after heat treatment, and the clamping is realized by pushing a clamping jaw sleeve forwards to enable the clamping jaw sleeve to be folded. The action mode of the clamping jaw sleeve is manual, the clamping jaw sleeve is pushed by a push rod to move forwards and backwards, so that an operator has one more action when operating the machine, and the efficiency is low.
SUMMERY OF THE UTILITY MODEL
To the current situation of above-mentioned prior art, the utility model aims to solve the technical problem that a straight tube end clamping device is provided, simple structure, convenient operation presss from both sides the clamping device of the reliable electric tube expander of clamp.
The technical scheme that utility model solved above-mentioned technical problem adopted does: the utility model provides a clamping device of double-barrelled electric tube expander, includes supporting seat and push pedal, be equipped with two sleeves between supporting seat and the push pedal, sleeve pipe one end is fixed in the backup pad, and the other end runs through the push pedal, be equipped with two cylinders between supporting seat and the push pedal, the cylinder is fixed in the supporting seat, the piston rod and the push pedal of cylinder are connected, the sleeve pipe front end is equipped with collet chuck, be equipped with in the push pedal cup joint in the sleeve outside the cover pipe, telescopic internal diameter is less than collet chuck's external diameter.
Furthermore, a plurality of anti-skidding grooves are formed in the inner wall of the spring chuck, and the wall thickness of the spring chuck close to one side of the push plate is smaller than that of the spring chuck far away from one side of the push plate. The design in antiskid groove can increase the frictional force of treating expand tube spare and collet chuck, further promotes tight stability of clamp, and the stability of collet chuck is promoted in the design of different wall thicknesses.
Furthermore, the middle part of the supporting seat is provided with a bulge, and the two sleeves are fixed on the bulge. Utilize protruding structure, reduce the whole length of sleeve pipe, promote sheathed tube stability in use simultaneously.
Furthermore, at least three gaps which are formed along the axial direction are formed in the spring chuck.
Furthermore, the two cylinders are respectively arranged at two ends of the supporting seat. The cylinders are symmetrically arranged on two sides, so that the operation is more stable.
Compared with the prior art, the beneficial effects of the utility model are that: during the use, treat that expand tube head stretches into collet chuck in, the cylinder work drives the sleeve and removes, realizes pressing from both sides tightly collet chuck, and then realizes treating the tight location of clamp of expanding tube head, whole clamping process is swift, and it is excellent to press from both sides tight effect, the developing of the subsequent handling of being convenient for. The utility model relates to a rationally, be fit for promoting on a large scale.
Drawings
Fig. 1 is the overall structure schematic diagram of the clamping device of the double-tube expander of the present invention.
Detailed Description
The drawings in the embodiments of the present invention will be combined to form a preferred embodiment of the present invention, rather than to form a complete embodiment of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, a clamping device of double-barrelled electric tube expander, including supporting seat 6 and push pedal 3, be equipped with two sleeve pipes 7 between supporting seat 6 and the push pedal 2, sleeve pipe 7 one end is fixed in backup pad 6, and the other end runs through push pedal 3, be equipped with two cylinders 4 between supporting seat 6 and the push pedal 3, cylinder 4 is fixed in supporting seat 6, the piston rod and the push pedal 3 of cylinder 4 are connected, sleeve pipe 7 front end is equipped with collet chuck 1, be equipped with in the push pedal 3 cup joint in sleeve 2 outside the sleeve pipe, the internal diameter of sleeve 2 is less than collet chuck 1's external diameter.
Preferably, the middle of the support seat 6 is provided with a protrusion 5, and the two sleeves 7 are fixed on the protrusion 5. By utilizing the structure of the bulge 5, the overall length of the sleeve 7 is reduced, and the use stability of the sleeve 7 is improved.
Preferably, the collet chuck 1 is provided with at least three slits 8 opened along the axial direction.
Preferably, the two cylinders 4 are respectively arranged at two ends of the supporting seat 6. The cylinders are symmetrically arranged on two sides, so that the operation is more stable.
Compared with the prior art, the beneficial effects of the utility model are that: during the use, treat that expand tube head stretches into collet chuck in, the cylinder work drives the sleeve and removes, realizes pressing from both sides tightly collet chuck, and then realizes treating the tight location of clamp of expanding tube head, whole clamping process is swift, and it is excellent to press from both sides tight effect, the developing of the subsequent handling of being convenient for. The utility model relates to a rationally, be fit for promoting on a large scale.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (5)
1. The utility model provides a clamping device of double-barrelled electric tube expander, its characterized in that, includes supporting seat and push pedal, be equipped with two sleeves between supporting seat and the push pedal, sleeve pipe one end is fixed in the backup pad, and the other end runs through the push pedal, be equipped with two cylinders between supporting seat and the push pedal, the cylinder is fixed in the supporting seat, the piston rod and the push pedal of cylinder are connected, the sleeve pipe front end is equipped with collet chuck, be equipped with in the push pedal cup joint in the sleeve outside the cover pipe, telescopic internal diameter is less than collet chuck's external diameter.
2. The clamping device of a double pipe expander according to claim 1, wherein the collet chuck is provided with a plurality of anti-slip grooves on an inner wall thereof, and a thickness of the collet chuck on a side close to the push plate is smaller than a thickness of the collet chuck on a side far from the push plate.
3. The clamping device of a double pipe expander as claimed in claim 1, wherein a projection is provided at a middle portion of the support base, and the two sleeves are fixed to the projection.
4. The clamping device for a dual tube expander as claimed in claim 1, wherein said collet is provided with at least three axially-disposed slits.
5. The clamping device of a double pipe expander according to claim 1, wherein said two cylinders are respectively disposed at both ends of the support base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020849560.5U CN212469503U (en) | 2020-05-20 | 2020-05-20 | Clamping device of double-pipe expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020849560.5U CN212469503U (en) | 2020-05-20 | 2020-05-20 | Clamping device of double-pipe expander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212469503U true CN212469503U (en) | 2021-02-05 |
Family
ID=74410803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020849560.5U Active CN212469503U (en) | 2020-05-20 | 2020-05-20 | Clamping device of double-pipe expander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212469503U (en) |
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2020
- 2020-05-20 CN CN202020849560.5U patent/CN212469503U/en active Active
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