Pipe expander clamping structure and pipe expander

Abstract

The utility model relates to the technical field of electric tools, in particular to a pipe expander clamping structure and a pipe expander, which comprise a chuck and a driving mechanism. The chuck comprises a fixed clamping block and a movable clamping block which are oppositely arranged, clamping grooves are formed in the fixed clamping block and the movable clamping block in a concave mode, a guide column is arranged on the fixed clamping block, and the guide column is sleeved with the movable clamping block in a sliding mode. And the driving mechanism is used for driving the movable clamping block to slide, so that the two clamping grooves are folded to form a clamping opening for clamping a pipe fitting. According to the structure, the clamping mode that the sliding opening and closing type chuck and electric driving are combined is adopted, a traditional hinged type manual opening and closing chuck is replaced, when pipe fittings of the same specification are clamped and machined, the chuck does not need to be taken out every time, use is more convenient, and the structure is simpler.

Description

Technical Field

[0001] This utility model relates to the field of power tool technology, and in particular to a pipe expander clamping structure and a pipe expander. Background Technology

[0002] Eccentric expanders are used in industries such as refrigeration, petroleum, chemical, shipbuilding, and power for connecting various types of pipes and containers.

[0003] The pipe expander used during connection expands the pipe by continuously rotating a conical eccentric head.

[0004] Chinese invention patent CN109926506B discloses an electric pipe expander. Its clamping body includes a left clamping body and a right clamping body, the middle of which is rotatably connected to a rotating shaft. The left and right clamping bodies on one side of the rotating shaft form clamping ends for holding the pipe to be processed, while the left and right clamping bodies on the other side form force-applying handles. The expander body corresponding to the clamping body has an expanding cavity. The clamping end of the clamping body extends into the expanding cavity and is clamped and fixed by a clamping linkage mechanism, with its outer end face abutting against the inner wall surface of the expanding cavity. In use, each time the expander is used, the clamping body must be removed from the expanding cavity, the clamping port manually opened, the pipe clamped, and then it reinserted into the expanding cavity, locked by the clamping linkage mechanism, and the pipe expanded. This process is cumbersome, inconvenient, and structurally complex. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the above-mentioned problems and provide a tube expander clamping structure and tube expander, which is more convenient to use.

[0006] The technical solution of this utility model is:

[0007] The present invention discloses a pipe expander clamping structure, characterized in that it includes a clamp and a driving mechanism; wherein, the clamp includes a fixed clamping block and a movable clamping block arranged opposite to each other, both the fixed clamping block and the movable clamping block are recessed with clamping grooves, the fixed clamping block is provided with a guide post, and the movable clamping block is slidably sleeved on the guide post; the driving mechanism is used to drive the movable clamping block to slide, so that the two clamping grooves close to form a clamping opening for clamping the pipe fitting.

[0008] Furthermore, in the pipe expander clamping structure described in this utility model, the driving mechanism adopts an electric push rod, the output end of which abuts against the movable clamping block. The push of the electric push rod drives the movable clamping block to move closer to the fixed clamping block to clamp the pipe.

[0009] Further, the utility model discloses the pipe expander clamping structure further, still include the elastic reset member for driving the movable clamping block to the elastic reset member for driving the movable clamping block to the direction of the fixed clamping block direction slip, for the auxiliary movable clamping block reverse reset to open the clamping mouth, and the pipe of convenient after processing is taken out.

[0010] Further, the utility model discloses the pipe expander clamping structure further, the drive mechanism adopts electric push rod, and the output end of electric push rod is detachably fixed with movable clamping block.

[0011] Further, the utility model discloses the pipe expander clamping structure further, still include the blocking piece for blocking movable clamping block from the blocking piece for blocking movable clamping block from the guide post on.

[0012] The utility model discloses a pipe expander still includes the pipe expander clamping structure, still includes the pipe expander main part, and the pipe expander main part is equipped with the chuck mounting cavity, the chuck sets up in chuck mounting cavity and chuck mounting cavity has the opening that can be supplied with the chuck and is put into, and the drive mechanism is fixed on the pipe expander main part.

[0013] Further, the utility model discloses the pipe expander further, the chuck mounting cavity still covers the cover plate, and the cover plate is equipped with the notch that can enter the pipe.

[0014] Further, the utility model discloses the pipe expander further, is equipped with the limit post in chuck mounting cavity, and the fixed clamping block is equipped with the limit slot that cooperates with this limit post on, for limiting the fixed clamping block position.

[0015] Further, the utility model discloses the pipe expander further, and the chuck mounting cavity is equipped with the wear baffle on the inner wall opposite with the opening, for avoiding chuck mounting cavity inner wall directly with the chuck contact, effectively reduces abrasion.

[0016] Further, the utility model discloses the pipe expander further, and the fixed clamping block is equipped with the handle that exposes to the opening, and it is convenient to handhold to quickly take out and replace the whole chuck.

[0017] The utility model has the advantages of:

[0018] The utility model discloses the pipe expander novel design adopts the clamping mode of combination of slip opening and closing chuck and electric drive, replaces the traditional hinged manual opening and closing chuck, when clamping and processing the pipe of same specification, does not need to take out the chuck every time, simplifies the operation step, and it is more convenient to use.

[0019] The utility model discloses a direct drive of electric push rod greatly simplifies mechanical structure, reduces the number of parts, reduces the failure rate, and need not manual, save time and labour, and clamping speed is fast, and action is nimble and reliable, still have power-off self -locking function simultaneously, can effectively ensure the sustained stability of clamping force. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the structural schematic diagram of the utility model.

[0021] Figure 2 It is the structural schematic diagram of the utility model after removing the cover plate.

[0022] In the drawing: 1, fixed clamping block;2, movable clamping block;3, guide column;4, clamping recess;5, electric push rod;6, pipe expander main body;7, chuck mounting cavity;8, opening;9, cover plate;10, pipe fitting insertion port;11, limiting column;12, wear baffle;13, handle. DETAILED DESCRIPTION

[0023] The utility model will be further described in connection with the drawings:

[0024] Refer to Figure 1 And Figure 2 The utility model discloses a pipe expander clamping structure, including chuck and drive mechanism, wherein, the chuck includes the fixed clamping block 1 and movable clamping block 2 of opposite setting, the fixed clamping block 1, movable clamping block 2 all are recessed with clamping recess 4, the fixed clamping block 1 is equipped with guide column 3, and movable clamping block 2 is slidably sleeved on guide column 3, the drive mechanism adopts electric push rod 5, and the output end of electric push rod 5 abuts movable clamping block 2, is used for driving movable clamping block 2 to shift, makes two clamping recess 4 and folds and forms the clamping mouth for clamping pipe fitting.

[0025] The output end of electric push rod 5 can also adopt the detachable fixed connection with movable clamping block 2, in this kind of case, electric push rod 5 can drive movable clamping block 2 to shift back and forth, and two actions of opening and closing clamping mouth are completed.

[0026] In the embodiment, the guide column 3 is further equipped with the blocking piece for blocking movable clamping block 2 from the guide column 3, which is not specifically drawn in the drawing.

[0027] Another embodiment of the utility model provides a pipe expander, including above-mentioned pipe expander clamping structure and pipe expander main part 6, pipe expander main part 6 is equipped with chuck mounting cavity 7, the chuck is set in chuck mounting cavity 7 and chuck mounting cavity 7 has an opening 8 for the chuck is put into, electric push rod 5 is fixed on pipe expander main part 6, can be set in a drive mounting cavity on pipe expander main part 6, for installing electric push rod 5. Chuck mounting cavity 7 is also covered with the cover plate 9 for blocking chuck to come out, pipe fitting insertion port 10 is equipped on the cover plate 9. Limiting post 11 is equipped in chuck mounting cavity 7, the fixed clamping block 1 is set up with the arc limiting slot that cooperates with this limiting post 11, for the limiting stop of fixed clamping block 1.

[0028] Chuck mounting cavity 7 is equipped with wear-resistant baffle 12 on the inner wall opposite opening 8, can adopt metal material, since pipe expander body 6 mainly adopts plastic material, chuck mounting cavity 7 inner wall is easy to appear friction and wear with clamp, can replace the direct contact of chuck mounting cavity 7 inner wall and chuck through the setting of wear-resistant baffle 12, reduces wear and tear, prolongs the overall service life.

[0029] In order to facilitate the chuck from opening 8, the fixed clamping block 1 is equipped with handle 13 that exposes to opening 8, for handheld operation.

[0030] Before use, first chuck is loaded into chuck mounting cavity 7 from opening 8, fixed clamping block 1 realizes limiting stop through the cooperation of limiting slot and limiting post 11, movable clamping block 2 and the output end of electric push rod 5 are installed well, when electric push rod 5 is not stretched out, movable clamping block 2 and fixed clamping block 1 are not closed, and the clamping mouth presents open state;From the pipe fitting insertion port 10 of cover plate 9, the pipe fitting to be processed is inserted into the clamping mouth, drive electric push rod 5 to stretch out, movable clamping block 2 closes the clamping mouth and makes the pipe fitting clamping by closing to fixed clamping block 1. Press the starting switch on the pipe expander body to expand the pipe, stop after forming, reverse reset movable clamping block 2, and take out the processed pipe fitting. When subsequent processing is carried out for the pipe fitting of uniform specification, the chuck does not need to be taken out, and only the pipe fitting needs to be repeated.

[0031] The specific embodiments described herein are merely illustrative of the principles of the utility model and its effects, and are not intended to limit the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical concept disclosed by the utility model are still covered by the claims of the utility model.

Claims

1. An expander clamp structure, characterized by: The utility model provides a pipe expanding device, including chuck and drive mechanism, wherein, the chuck includes opposite fixed clamping block and movable clamping block, the fixed clamping block, movable clamping block all are recessed with clamping recess, the fixed clamping block is equipped with guide post, and movable clamping block slidingly covers guide post, the drive mechanism is used to drive movable clamping block to slide, and makes two clamping recesses contract to form the clamping mouth for clamping pipe.

2. The expander clamp structure of claim 1, wherein: The drive mechanism adopts an electric push rod, and the output end of the electric push rod abuts against the movable clamping block.

3. The expander clamp structure of claim 2, wherein: Further comprising an elastic reset member for driving the movable clamping block to slide away from the fixed clamping block.

4. The expander clamp structure of claim 1, wherein: The drive mechanism adopts an electric push rod, and the output end of the electric push rod is detachably fixedly connected with the movable clamping block.

5. The expander clamp structure of claim 1, wherein: The guide post is further provided with a blocking member for preventing the movable clamping block from being detached from the guide post.

6. A pipe expander characterized by: The utility model provides a pipe expanding device, including chuck and drive mechanism, wherein, the chuck includes opposite fixed clamping block and movable clamping block, the fixed clamping block, movable clamping block all are recessed with clamping recess, the fixed clamping block is equipped with guide post, and movable clamping block slidingly covers guide post, the drive mechanism is used to drive movable clamping block to slide, and makes two clamping recesses contract to form the clamping mouth for clamping pipe.

7. The pipe expander of claim 6, wherein: The chuck mounting cavity is further covered with a cover plate for preventing the chuck from being detached, and the cover plate is provided with a pipe inserting opening.

8. The pipe expander of claim 6, wherein: The chuck mounting cavity is further provided with a limiting column, and the fixed clamping block is provided with a limiting slot matched with the limiting column.

9. The pipe expander of claim 6, wherein: The chuck mounting cavity is further provided with a wear-resistant baffle on the inner wall opposite to the opening.

10. The pipe expander of claim 6, wherein: The fixed clamping block is further provided with a handle exposed outside the opening. The utility model provides a pipe expanding device, including chuck and drive mechanism, wherein, the chuck includes opposite fixed clamping block and movable clamping block, the fixed clamping block, movable clamping block all are recessed with clamping recess, the fixed clamping block is equipped with guide post, and movable clamping block slidingly covers guide post, the drive mechanism is used to drive movable clamping block to slide, and makes two clamping recesses contract to form the clamping mouth for clamping pipe.

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