Pipe end expanding device

Abstract

The utility model discloses a pipe end expanding device, which relates to the technical field of pipe processing equipment and comprises a processing table with an expanding tool bit and a pipe stopper on two sides respectively, a pipe feeding mechanism is arranged behind the processing table with a gravity sensor, and the pipe feeding mechanism is stopped by a stopping strip arranged on the processing table. The machining table is further provided with a fork arm assembly comprising a front fork arm and a rear fork arm, when the fork arm assembly is driven to ascend and descend, the front fork arm located in a fork groove formed in the machining table can push the expanded pipe outwards, and the rear fork arm located behind the blocking strip can push a pipe to be expanded towards the machining table. Compared with the prior art, the pipe feeding and discharging actions of the expanding device can be synchronously realized by means of the fork arm assembly, and the automatic operation capability is higher.

Description

Technical Field

[0001] The utility model relates to a diameter expanding device, in particular to an end diameter expanding device of a pipe, and belongs to the technical field of pipe processing equipment. Background Art

[0002] In order to facilitate the connection and combination between pipes, the end of the pipe needs to be enlarged by a diameter expansion device. After searching, the patent with the announcement number "CN219169408U" discloses a variable diameter expanding machine for the production of corrosion-resistant high-strength pipes. The applicant believes that during the use of this design, it is necessary to manually load and unload the pipes, which is slightly inconvenient to operate.

[0003] Therefore, the applicant also designed a pipe end diameter expansion device and filed the following application in this regard. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the utility model provides a device for expanding the diameter of an end portion of a pipe.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a device for expanding the diameter of the end of a pipe, comprising a processing table with an expanding cutter head and a pipe stopper on both sides respectively; a pipe feeding mechanism is arranged behind the processing table with a gravity sensor, and the pipe feeding mechanism is stopped by a stop bar provided on the processing table, and the processing table is also provided with a fork arm assembly including a front fork arm and a rear fork arm, and when the fork arm assembly is driven to rise and fall, the front fork arm located in the fork groove provided on the processing table can push the expanded pipe outward, and the rear fork arm located behind the stop bar can push a pipe to be expanded toward the processing table.

[0006] Preferably, the pipe delivery mechanism includes a pipe storage box with a slide connected to the front end, the end of the slide abuts against the baffle of the processing table, and the rear fork arm can pass up and down through the groove provided in the slide to push a pipe to be expanded on the slide to the processing table.

[0007] Preferably, a box door is slidably provided at the junction of the pipe storage box and the slideway, and a locking assembly on the side of the box door can separate the pipe storage box and the slideway from each other.

[0008] Preferably, the locking assembly includes a sliding block locked with the box door, the sliding block is elastically slidably arranged on a sliding seat of the pipe storage box, one end of a telescopic member arranged on the sliding seat abuts against the top of the sliding block, and the telescopic member can be extended and retracted to make the sliding block slide up and down accordingly, thereby opening or closing the pipe storage box.

[0009] Preferably, the locking assembly further comprises a locking shaft, and the sliding block is formed with a locking notch corresponding to the locking shaft.

[0010] Preferably, an upper clamping table is arranged above the processing table through a clamping cylinder, and the processing table and the upper clamping table together form a clamping groove matching the contour of the pipe.

[0011] Preferably, the baffle is a trapezoidal baffle, the higher side of which abuts against the pipe feeding mechanism, and the pipe to be expanded output by the pipe feeding mechanism can be transported to the processing table along the slope of the baffle under the action of the rear fork arm.

[0012] Preferably, the front fork arm and the rear fork arm of the fork arm assembly are both formed with oblique cuts to push the pipe to be output forward in one direction.

[0013] Preferably, an inclined pipe outlet rack is also provided in front of the processing table, and after the expanded pipe is pushed out of the processing table by the front fork arm, it is rolled outwardly by the pipe outlet rack.

[0014] Preferably, it also includes a cutter head cylinder, and the diameter expansion cutter head is driven by the cutter head cylinder to move away from or close to the pipe on the processing table.

[0015] The utility model has at least the following benefits:

[0016] 1. The pipe inlet and outlet movements of the expansion device can be realized synchronously with the fork arm assembly, and it has a high degree of automatic operation capability;

[0017] 2. The locking assembly can control the opening and closing of the pipe storage box, which can store a large number of pipes to be expanded in advance;

[0018] 3. The gravity sensor built into the processing table can sense the presence or absence of the pipe to accurately control its movement with the mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model.

[0020] Figure 2 yes Figure 1 Lateral schematic diagram at point A in the middle.

[0021] Figure 3 yes Figure 1 Schematic diagram of the top surface.

[0022] Figure 4 It is a schematic diagram of the structure of the locking assembly.

[0023] Figure 5 It is a schematic diagram of the structure of a push fork.

[0024] In the figure, 1-external frame; 101-base; 2-processing table; 201-stop bar; 3-expanding cutter head; 301-cutter head cylinder; 4-pipe stopper; 401-adjusting screw; 402-adjusting seat; 5-pipe feeding mechanism; 501-slideway; 502-pipe storage box; 503-box door; 504-locking assembly; 514-sliding seat; 524-guide bracket; 534-sliding block; 544-telescopic member; 554-locking shaft; 6-push fork; 601-fork arm assembly; 611-front fork arm; 621-rear fork arm; 602-lifting motor; 7-upper clamping table; 701-clamping table cylinder; 8-pipe outlet rack. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] like Figure 1-Figure 5 As shown: a device for expanding the diameter of an end portion of a pipe comprises an outer frame 1, a base 101 arranged at the center of the outer frame 1 is fixed with a processing table 2, the left and right sides of the outer frame 1 are matched with the processing table 2 and are respectively equipped with a diameter expanding cutter head 3 and a pipe stopper 4, and the rear side is equipped with a pipe feeding mechanism 5 that is docked with the processing table 2. After the pipe feeding mechanism 5 feeds a pipe to the processing table 2, the diameter expanding cutter head 3 can expand the end portion of the pipe.

[0027] Furthermore, a trapezoidal baffle 201 is integrally formed on the rear side of the processing table 2. The higher side of the baffle 201 can block the slide 501 used by the pipe feeding mechanism 5 to output the pipe. A push fork 6 can push a pipe to be expanded on the slide 501 to the processing table 2, and at the same time push the expanded pipe out from the processing table 2.

[0028] Specifically, the pushing fork 6 includes a fork arm assembly 601 and a lifting motor 602, and the fork arm assembly 601 has a front fork arm 611 and a rear fork arm 621; the front fork arm 611 is accommodated in the fork groove opened in the processing table 2, and the rear fork arm 621 is arranged near the rear side of the baffle bar 201 and is located below the slide 501. Driven by the lifting motor 602, the front fork arm 611 and the rear fork arm 621 can rise synchronously. At this time, the front fork arm 611 can push out the expanded pipe on the processing table 2, and the rear fork arm 621 can lift a pipe to be expanded on the slide 501 upward, so that it can be rolled and transported to the processing table 2 with the help of the slope of the baffle bar 201.

[0029] Specifically, in order to ensure that the pipe can only be output forward in one direction under the push of the fork arm assembly 601, the front fork arm 611 and the rear fork arm 621 of the fork arm assembly 601 are both formed with oblique cuts.

[0030] Furthermore, the pipe delivery mechanism 5 includes a pipe storage box 502 for storing pipes to be expanded. The above-mentioned slide 501 is connected to the front end of the pipe storage box 502, and a through groove is formed at one end thereof that abuts against the baffle 201. The rear fork arm 621 can pass up and down through the through groove to push the pipes to be expanded onto the processing table 2.

[0031] Specifically, the pipe storage box 502 includes a box door 503 with a locking assembly 504 on the side. The locking assembly 504 can drive the box door 503 to move downward to separate the pipe storage box 502 and the slide 501 from each other to stop the transportation of the pipes to be expanded, or can drive the box door 503 to move upward to form a pipe outlet gap between the box door 503 and the slide 501. The pipes to be expanded in the pipe storage box 502 can be output to the slide 501 in an orderly manner through the pipe outlet gap.

[0032] Specifically, the locking assembly 504 includes a sliding seat 514 fixed to the side wall of the storage tube box 502, a guide bracket 524 is installed near the sliding seat 514, and the sliding seat 514 and the guide bracket 524 are enclosed together to form a sliding space, and a sliding block 534 locked and connected to the box door 503 is slid up and down in the sliding space through a spring and a guide column. At the same time, there is a telescopic member 544 that can be adjusted manually or electrically between the sliding seat 514 and the sliding block. Under the telescopic action of the telescopic member 544, the sliding block 534 moves up and down to open or close the storage tube box 502 accordingly. In addition, a locking shaft 554 is fixed to the bottom of the sliding space, and the sliding block 534 has an arc-shaped locking cutout corresponding to the locking shaft. If the sliding block 534 is pressed against the locking shaft 554, it means that the storage tube box 502 has been completely closed, and the adjustment of the telescopic member 544 should be stopped.

[0033] Furthermore, the outer frame 1 is provided with an upper clamping table 7 driven to rise and fall by a clamping cylinder 701 at the top side corresponding to the processing table 2. The processing table 2 and the upper clamping table 7 together form a clamping groove matching the contour of the pipe, and the clamping groove of the processing table 2 has a built-in gravity sensor.

[0034] Furthermore, in order to collect the expanded pipes, an inclined pipe outlet rack 8 can be connected to the front of the processing table 2, and a collection box can be placed at the end of the pipe outlet rack. After the expanded pipes are pushed out of the processing table by the front fork arm 611, they will roll along the pipe outlet rack 8 and fall into the collection box.

[0035] Furthermore, the above-mentioned diameter expansion cutter head 3 is driven by a cutter head cylinder 301 installed on the outer frame 1, so as to move away from or close to the pipe on the processing table 2; and the pipe stopper 4 has an adjusting screw 401, which can adjust its own position relative to the adjusting seat 402 provided on the outer frame 1 so as to tighten the other end of the pipe.

[0036] Working method: First, the pipe outlet gap of the pipe storage box is pre-adjusted through the telescopic parts, so that the pipe storage box can output each pipe to be expanded to the slide in sequence; secondly, the lifting motor is activated, and the rear fork arm lifts the pipe to be expanded at the end of the slide upward, so that the pipe rolls forward and is transported to the clamping groove of the processing table; thirdly, the gravity sensor of the processing table senses the existence of the pipe and drives the upper clamping table to move downward to clamp the pipe together; from then on, the expanding cutter head moves toward the end of the pipe to expand it; finally, the upper clamping table is reset, the lifting motor is activated again, the front fork arm pushes the expanded pipe outward, and the rear fork arm continues to push the pipe to be expanded.

[0037] As described in the background technology, the use of the above-mentioned expanding machine (expanding device) requires manual loading and unloading of pipes, which is inevitably inconvenient in operation and the overall work efficiency needs to be improved. Compared with it, the loading and unloading steps of pipes in this design are realized by a push fork, which has a higher degree of automation as a whole. In addition, the pipe storage box can also pre-store a large number of pipes to be expanded, which can reduce the number of manual fillings to a certain extent.

[0038] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A device for expanding the diameter of an end of a pipe, comprising a processing table (2) having an expanding cutter head (3) and a pipe stopper (4) on both sides, characterized in that: A pipe delivery mechanism (5) is arranged behind the processing table (2) having a gravity sensor and is stopped by a stop bar (201) provided on the processing table (2). The processing table (2) is also provided with a fork arm assembly (601) including a front fork arm (611) and a rear fork arm (621). When the fork arm assembly (601) is driven to rise and fall, the front fork arm (611) located in the fork groove provided on the processing table (2) can push out the expanded pipe, and the rear fork arm (621) located behind the stop bar (201) can deliver a pipe to be expanded toward the processing table (2).

2. A pipe end diameter expanding device as claimed in claim 1, characterized in that: The pipe delivery mechanism (5) comprises a pipe storage box (502) with a slideway (501) connected to the front end thereof, the end of the slideway (501) abutting against a stop bar (201) of the processing table (2), and a rear fork arm (621) can pass up and down through a groove provided in the slideway (501) to push a pipe to be expanded on the slideway (501) onto the processing table (2).

3. A pipe end diameter expanding device as claimed in claim 2, characterized in that: A box door (503) is slidably provided at the connection point between the pipe storage box (502) and the slideway (501), and a locking assembly (504) is provided on the side of the box door (503) to separate the pipe storage box (502) and the slideway (501) from each other.

4. A pipe end diameter expanding device as claimed in claim 3, characterized in that: The locking assembly (504) comprises a sliding block (534) locked with the box door (503); the sliding block (534) is elastically slidably arranged on a sliding seat (514) of the pipe storage box (502); one end of a telescopic member (544) arranged on the sliding seat (514) abuts against the top of the sliding block (534); the telescopic member (544) is retracted to make the sliding block (534) slide up and down accordingly, thereby opening or closing the pipe storage box (502).

5. The end diameter expansion device of a pipe as claimed in claim 4, characterized in that: The locking assembly (504) further comprises a locking shaft (554), and the sliding block (534) is formed with a locking notch corresponding to the locking shaft (554).

6. The end diameter expansion device of a pipe as claimed in claim 1, characterized in that: An upper clamping platform (7) is arranged above the processing platform (2) via a clamping platform cylinder (701), and the processing platform (2) and the upper clamping platform (7) together form a clamping groove that matches the contour of the pipe.

7. The end diameter expansion device of a pipe as claimed in claim 1, characterized in that: The baffle (201) is a trapezoidal baffle, the higher side of which abuts against the pipe delivery mechanism (5). The pipe to be expanded output by the pipe delivery mechanism (5) can be transported to the processing table (2) along the slope of the baffle (201) under the action of the rear fork arm (621).

8. The end diameter expansion device of a pipe as claimed in claim 7, characterized in that: The front fork arm (611) and the rear fork arm (621) of the fork arm assembly (601) are both formed with oblique cutouts to push the pipe forward in a one-way output.

9. The end diameter expansion device of a pipe as claimed in claim 1, characterized in that: An inclined pipe outlet rack (8) is also provided in front of the processing table (2). After the expanded pipe is pushed out of the processing table (2) by the front fork arm (611), it is rolled outwards by the pipe outlet rack (8).

10. A pipe end diameter expanding device according to any one of claims 1 to 9, characterized in that: It also comprises a cutter head cylinder (301), and the diameter-expanding cutter head (3) is driven by the cutter head cylinder (301) to move away from or close to the pipe on the processing table (2).

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