CN216575239U - Pipe expander and positioning device thereof - Google Patents

Abstract

The positioning device is adjacently arranged on the pipe expander with the pipe expanding device on the pipe expander, the positioning device comprises a plurality of positioning tables which are orderly arranged in the direction of the pipe expanding device, and two sides of each positioning table are respectively provided with a first positioning piece for clamping and positioning the X-axis direction of a workpiece; the positioning device also comprises a pressing mechanism arranged above the positioning tables, and the pressing mechanism comprises a plurality of second positioning pieces which can move downwards onto the positioning tables and press and position the workpiece in the Y-axis direction; the positioning device respectively aligns the X axis and the Y axis of the workpiece through the first positioning piece and the second positioning piece so as to correct the alignment error between the pipeline on the workpiece and the pipe expanding piece on the pipe expanding device. The method and the device can effectively reduce manual correction operation, and further improve the pipe expanding accuracy and the production efficiency of the pipe expander.

Description

Pipe expander and positioning device thereof

Technical Field

The application belongs to the technical field of pipe expanding equipment, and particularly relates to a pipe expander and a positioning device thereof.

Background

The tube expander is mainly special expanded connection equipment for expanded connection of tubes and tube plates in the manufacturing of equipment such as heat exchangers, condensers and high-pressure heaters, the existing tube expander is mostly vertical, the vertical tube expander cannot be too high generally due to limitation of the height of a plant, so that the length of a workpiece to be machined is limited, large workpieces are not easy to load, the tube expander is not high in requirement on the plant compared with the vertical tube expander, longer and larger workpieces can be machined, and the loading is more convenient.

In the tube expander of the prior art, a tube expander for expanding a tube is generally provided, the outer diameter of the tube expander is larger than the inner diameter of a workpiece tube, and the tube expander is used for extending into the workpiece tube to perform expansion processing on the workpiece tube. In actual production and processing, the position between the expansion pipe fitting and the workpiece pipeline needs to be accurately aligned, and the expansion pipe fitting can be ensured to expand the workpiece. At present, the position of a workpiece is generally adjusted manually, and the manual adjustment is easy to cause errors, so that the production efficiency of the pipe expander is reduced.

Disclosure of Invention

An object of the embodiment of the application is to provide a pipe expander and a positioning device thereof, so as to solve the technical problems that the position of a workpiece needs to be manually adjusted and the existing positioning error is corrected in the prior art.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: the positioning device is arranged on the pipe expander and is adjacent to a pipe expanding device on the pipe expander, the positioning device comprises a plurality of positioning tables which are orderly arranged in the direction of the pipe expanding device, and two sides of each positioning table are respectively provided with a first positioning piece for clamping and positioning a workpiece in the X-axis direction; the positioning device also comprises a pressing mechanism arranged above the positioning tables, and the pressing mechanism comprises a plurality of second positioning pieces which can move downwards onto the positioning tables and press and position the workpiece in the Y-axis direction; the positioning device respectively aligns the X axis and the Y axis of the workpiece through the first positioning piece and the second positioning piece so as to correct the alignment error between the pipeline on the workpiece and the pipe expanding piece on the pipe expanding device.

The application provides a positioner of electric tube expander's beneficial effect lies in: compared with the prior art, the positioner of this application electric tube expander includes the location platform that a plurality of intervals set up, and the both sides of location platform are equipped with first locating piece, this first locating piece can fix a position the horizontal skew of work piece, the second locating piece that sets up above the location platform can fix a position the high skew of work piece, with the pipeline on the automatic correction work piece and the counterpoint error of expand tube spare, let the work piece of setting on the electric tube expander can with expand tube spare automatic alignment, expand tube in the pipeline that the expand tube spare can stretch into on the work piece smoothly, reduce manual correction operation effectively, and then improve the expand tube accuracy and the production efficiency of electric tube expander.

The structure of the first positioning piece is improved, the first positioning piece comprises a first moving block and a second moving block which are arranged on two sides of the positioning table respectively, positioning strips are arranged on the first moving block and the second moving block respectively, the positioning table is provided with a first driver for driving the first moving block to move towards the second moving block and a second driver for driving the second moving block to move towards the first moving block, so that the positioning strips of the first moving block and the positioning strips of the second moving block are close to each other, the two positioning tables clamp the workpiece, and the workpiece left and right sides of the workpiece are positioned and adjusted.

The structure of the positioning table is improved, the positioning table is provided with two limiting blocks matched with the second moving block in position, the second moving block moves between the two limiting blocks, if the first moving block and the second moving block do not limit the displacement stroke, when the first moving block and the second moving block move in opposite directions, the impact force is too large, the workpiece can be damaged, the displacement stroke of the second moving block needs to be limited, the impact force generated on the workpiece when the first moving block and the second moving block move and clamp is reduced, and the workpiece is prevented from being damaged.

The structure of the first moving block and the structure of the second moving block are improved, the first moving block and the second moving block are both of cylindrical structures, and the first moving block and the second moving block are sleeved on the positioning table, so that the moving smoothness of the first moving block and the second moving block can be improved.

The structure of the second positioning part is improved, the second positioning part comprises a pressing plate and a third driver for driving the pressing plate to move towards the positioning table, so that the pressing plate is pressed against the positioning strips, and the upper and lower positions of the workpiece are adjusted.

Furthermore, the first moving block and the second moving block are respectively provided with a positioning block higher than the positioning strip and a fourth driver for driving the positioning block to move towards the positioning strip, so that the positioning block covers the positioning strip, when the height of the workpiece is changed, the fourth driver can be started to drive the positioning block to cover the positioning strip, the pressing height of the pressing plate is adjusted, and the positioning device can adapt to workpieces of various sizes.

Still further, be equipped with first guide bar on the locating bar, the locating piece seted up with first guide bar position assorted first through-hole, just seted up on the locating piece with locating piece position assorted keeps away the dead slot, the drive of fourth driver the locating piece is in on the first guide bar toward the locating bar direction removes, so that the locating bar block is blocked in keep away in the dead slot, be convenient for remove the locating piece to the locating bar top, make and keep away the dead slot on the locating piece and can wrap up the locating bar.

The structure of the positioning table is improved, the positioning table is provided with a fifth driver for driving the positioning table to lift, and the height of the positioning table can be adjusted, so that the positioning table can adapt to workpieces of various sizes.

Furthermore, the positioning table and a supporting table are arranged between the fifth drivers, a second guide rod is arranged at the bottom of the positioning table, and a second through hole matched with the position of the second guide rod is formed in the supporting table, so that the structural stability of the positioning table can be improved.

The application still provides a pipe expander, in proper order including be used for fixed work piece fixing device, be used for placing the workstation of work piece and be used for carrying out the expand tube device that the expand tube was handled to the work piece, the pipe expander still includes as above the positioner of pipe expander, positioner sets up on the workstation, on placing the workstation with the work piece, restart positioner adjusts the reference surface of work piece, and the expand tube spare position that makes the pipeline of work piece and the expand tube on the expand tube device is corresponding, restarts the expand tube device, can realize handling the expand tube of work piece, and easy operation can improve the production efficiency of pipe expander.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a first schematic structural diagram of a positioning device of a pipe expander according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a pipe expander provided in an embodiment of the present application;

fig. 3 is a second schematic structural diagram of a positioning device of a pipe expander according to an embodiment of the present application;

fig. 4 is a third schematic structural diagram of a positioning device of the pipe expander according to an embodiment of the present application;

fig. 5 is a fourth schematic structural diagram of a positioning device of the pipe expander according to an embodiment of the present application;

FIG. 6 is an enlarged view of a portion of FIG. 3 at A;

fig. 7 is a partial enlarged view of fig. 5 at B.

Wherein, in the figures, the respective reference numerals:

100-a positioning device;

1-a positioning table;

11-a fifth driver;

12-a support table;

121-a second via;

13-a second guide bar;

2-a first positioning member;

21-a first moving block;

22-a second moving mass;

23-a first driver;

24-a second driver;

25-a positioning bar;

251-a first guide bar;

26-a limiting block;

27-positioning blocks;

271-a first via;

272-clearance groove;

28-a fourth drive;

3-a second positioning element;

31-a platen;

32-a third driver;

200-a fixture;

300-a workbench;

400-tube expansion device.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Now, referring to fig. 2, the pipe expander provided in an embodiment of the present application is described, and includes a fixing device 200 for fixing a workpiece, a workbench 300 for placing the workpiece, and a pipe expanding device 400 for performing pipe expanding processing on the workpiece in sequence, where a pipe expanding member is disposed on the pipe expanding device 400, the pipe expanding member is generally an expanding rod, the pipe expander further includes a positioning device 100, the positioning device 100 is disposed on the workbench 300, the workpiece is placed on the workbench 300, the positioning device 100 is restarted, a reference plane of the workpiece is adjusted, so that a pipeline of the workpiece corresponds to a position of the pipe expanding member on the pipe expanding device 400, and the pipe expanding device 400 is restarted, so that pipe expanding processing on the workpiece can be achieved, the operation is simple, and the production efficiency of the pipe expander can be improved.

Referring to fig. 1, fig. 2 and fig. 3 together, a positioning device 100 is disposed on a pipe expander adjacent to a pipe expanding device 400 on the pipe expander, the positioning device 100 includes a plurality of positioning tables 1 arranged in order in a direction in which the pipe expanding device 400 is located, and two sides of each positioning table 1 are respectively provided with a first positioning element 2 for clamping and positioning a workpiece in an X-axis direction; the positioning device 100 further comprises a pressing mechanism arranged above the plurality of positioning tables 1, and the pressing mechanism comprises a plurality of second positioning pieces 3 which can move downwards onto the positioning tables 1 and press and position the workpiece in the Y-axis direction; the positioning device 100 respectively aligns the X axis and the Y axis of the workpiece through the first positioning element 2 and the second positioning element 3 to correct an alignment error between the pipeline on the workpiece and the tube expansion element on the tube expansion device 400, so that the tube expansion element can conveniently expand the pipeline of the workpiece.

The application provides positioner 100 of electric tube expander compares with prior art, positioner 100 includes location platform 1 that a plurality of intervals set up, the both sides of location platform 1 are equipped with first setting element 2, this first setting element 2 can fix a position the horizontal migration of work piece, second setting element 3 that sets up in location platform 1 top can fix a position the high skew of work piece, with the counterpoint error of pipeline and expand tube spare on the automatic correction work piece, let the work piece of setting on the electric tube expander can with expand tube spare automatic alignment, the expand tube spare can stretch into the pipeline on the work piece smoothly and carry out the expand tube, reduce manual correction operation effectively, and then improve the expand tube accuracy and the production efficiency of electric tube expander.

In the embodiment provided by the present application, please refer to fig. 3, fig. 4 and fig. 5 together, the first positioning member 2 includes a first moving block 21 and a second moving block 22 respectively disposed at two sides of the positioning table 1, the first moving block 21 and the second moving block 22 are both provided with positioning bars 25, the positioning table 1 is provided with a first driver 23 for driving the first moving block 21 to move toward the second moving block 22 and a second driver 24 for driving the second moving block 22 to move toward the first moving block 21, so as to drive the positioning bars 25 of the first moving block 21 and the positioning bars 25 of the second moving block 22 to approach each other, and the two positioning tables 1 clamp the workpiece, thereby realizing the positioning adjustment of the positions at the left and right sides of the workpiece.

In the embodiment provided by the application, please refer to fig. 3 and fig. 6 together, the positioning table 1 is provided with two limiting blocks 26 matched with the second moving block 22 in position, the two limiting blocks 26 are provided, the second moving block 22 moves between the two limiting blocks 26, if the first moving block 21 and the second moving block 22 do not limit the displacement stroke, when the first moving block 21 and the second moving block 22 move in opposite directions, the impact force is too large, which may damage the workpiece, so that the displacement stroke of the second moving block 22 needs to be limited, and the impact force generated to the workpiece when the first moving block 21 and the second moving block 22 move and clamp is reduced, thereby preventing the workpiece from being damaged, and improving the stability of the overall structure of the positioning device.

In the embodiment provided by the present application, please refer to fig. 6 and fig. 7 together, the first moving block 21 and the second moving block 22 are both of a cylindrical structure, both the first moving block 21 and the second moving block 22 are connected to the positioning table 1 through a slider rail, and the first moving block 21 and the second moving block 22 are sleeved on the positioning table 1, so that the moving smoothness of the first moving block 21 and the second moving block 22 can be improved.

In the embodiment provided in the present application, referring to fig. 2, the second positioning element 3 includes a pressing plate 31 and a third driver 32 for driving the pressing plate 31 to move toward the positioning table 1, so that the pressing plate 31 presses against the positioning bar 25 to adjust the height offset of the workpiece.

In the embodiment provided in the present application, please refer to fig. 6 and 7 together, the first moving block 21 and the second moving block 22 are both provided with a positioning block 27 having a height higher than that of the positioning bar 25 and a fourth driver 28 for driving the positioning block 27 to move toward the positioning bar 25, so that the positioning block 27 covers the positioning bar 25, when the height of the workpiece changes, the fourth driver 28 can be started to drive the positioning block 27 to cover the positioning bar 25, thereby realizing the adjustment of the pressing height of the pressing plate 31, and enabling the positioning device 100 to adapt to workpieces with different sizes, i.e., improving the universality of the positioning device 100.

In the embodiment provided in the present application, please refer to fig. 6 and fig. 7 together, the positioning bar 25 is provided with a first guide rod 251, the positioning block 27 is provided with a first through hole 271 matching with the position of the first guide rod 251, and the positioning block 27 is provided with a clearance groove 272 matching with the position of the positioning block 27, the fourth driver 28 drives the positioning block 27 to move on the first guide rod 251 toward the positioning bar 25, so that the positioning bar 25 is clamped into the clearance groove 272, which is convenient for moving the positioning block 27 to the positioning bar 25, and the clearance groove 272 on the positioning block 27 can wrap the positioning bar 25.

In the embodiment provided by the present application, referring to fig. 3 and fig. 4, the positioning table 1 is provided with a fifth driver 11 for driving the positioning table 1 to move up and down, so that the height of the positioning table 1 can be adjusted to adapt to various workpieces with different sizes.

In the embodiment provided in the present application, please refer to fig. 3 and fig. 4, a supporting table 12 is disposed between the positioning table 1 and the fifth driver 11, a second guiding rod 13 is disposed at the bottom of the positioning table 1, and a second through hole 121 matched with the second guiding rod 13 is disposed on the supporting table 12, so as to improve the structural stability of the positioning table 1.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. A positioning device for a pipe expander, arranged on the pipe expander adjacent to a pipe expansion device on the pipe expander, characterized by: the positioning device comprises a plurality of positioning tables which are orderly arranged in the direction of the pipe expanding device, and first positioning pieces for clamping and positioning the X-axis direction of the workpiece are respectively arranged on two sides of each positioning table; the positioning device also comprises a pressing mechanism arranged above the positioning tables, and the pressing mechanism comprises a plurality of second positioning pieces which can move downwards onto the positioning tables and press and position the workpiece in the Y-axis direction; the positioning device respectively aligns the X axis and the Y axis of the workpiece through the first positioning piece and the second positioning piece so as to correct the alignment error between the pipeline on the workpiece and the pipe expanding piece on the pipe expanding device.

2. The positioning device of the pipe expander according to claim 1, wherein: the first positioning piece comprises a first moving block and a second moving block which are arranged on two sides of the positioning table respectively, positioning strips are arranged on the first moving block and the second moving block respectively, the positioning table is provided with a first driver for driving the first moving block to move towards the direction of the second moving block and a second driver for driving the second moving block to move towards the direction of the first moving block, and therefore the positioning strips of the first moving block and the positioning strips of the second moving block are close to each other.

3. The positioning device of the pipe expander according to claim 2, wherein: the positioning table is provided with two limiting blocks matched with the second moving block in position, and the second moving block moves between the two limiting blocks.

4. The positioning device of the pipe expander according to claim 2, wherein: the first moving block and the second moving block are both of cylindrical structures, and the first moving block and the second moving block are sleeved on the positioning table.

5. The positioning device of the pipe expander according to claim 2, wherein: the second positioning part comprises a pressing plate and a third driver for driving the pressing plate to move towards the positioning table, so that the pressing plate is abutted against the positioning strip.

6. The positioning device of the pipe expander according to claim 5, wherein: the first moving block and the second moving block are both provided with a positioning block higher than the positioning strip and a fourth driver for driving the positioning block to move towards the direction of the positioning strip, so that the positioning block covers the positioning strip.

7. The positioning device of the pipe expander according to claim 6, wherein: the positioning strip is provided with a first guide rod, the positioning block is provided with a first through hole matched with the position of the first guide rod, the positioning block is provided with a clearance groove matched with the position of the positioning block, and the fourth driver drives the positioning block to move on the first guide rod towards the direction of the positioning strip so as to clamp the positioning strip into the clearance groove.

8. The positioning device of the pipe expander according to any one of claims 1 to 7, wherein: the positioning table is provided with a fifth driver for driving the positioning table to lift.

9. The positioning device of the pipe expander according to claim 8, wherein: a supporting table is arranged between the positioning table and the fifth driver, a second guide rod is arranged at the bottom of the positioning table, and a second through hole matched with the position of the second guide rod is formed in the supporting table.

10. The utility model provides a pipe expander, includes the fixing device who is used for fixed work piece in proper order, is used for placing the workstation of work piece and is used for carrying out the expand tube device that the expand tube was handled to the work piece which characterized in that: the pipe expander further comprises a positioning device of the pipe expander according to any one of claims 1 to 9, the positioning device being provided on the work table.

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