Two-way automatic necking device for metal pipe

Abstract

The utility model relates to the technical field of metal pipe end machining, in particular to a metal pipe bidirectional automatic necking device which comprises a rack, hydraulic cylinders are fixedly installed at the top ends of the left side and the right side of the rack respectively, machining supporting plates are fixedly installed at the left end and the right end of the inner side of the rack respectively, and a metal pipe to be machined is erected on the inner sides of the machining supporting plates. Necking die heads are fixedly connected to the positions, located on the left side and the right side of the to-be-machined metal pipe, of the driving end of the hydraulic cylinder, a material changing mechanism is fixedly installed in the position, located below the to-be-machined metal pipe, of the interior of the rack, a feeding tray is fixedly installed on the back face of the rack, and a material guiding frame is fixedly installed on the front face of the rack; compared with an existing bidirectional automatic metal pipe necking device, the bidirectional automatic metal pipe necking device has the advantages that necking operation can be automatically carried out without manual feeding and discharging, and the machining efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of metal pipe end processing, in particular to a two-way automatic shrinking device for a metal pipe. Background Art

[0002] Metal tube shrinking technology is a commonly used metal processing method. It mainly uses special machinery and equipment to process the end of the metal tube to make it present a shrinking appearance. This technology can effectively improve the connection strength and sealing performance of the metal tube. It is widely used in construction, petroleum, chemical and other industries.

[0003] Hydraulic shrinking is one of the shrinking methods currently used for metal pipes. It is an efficient and accurate shrinking method. A special hydraulic shrinking machine is required for shrinking metal pipes. A person needs to hold the outer side of the metal pipe and insert the end of the metal pipe into the inner side of the hydraulic shrinking machine. The hydraulic shrinking machine applies a certain amount of hydraulic pressure at both ends of the metal pipe to gradually deform the two ends of the metal pipe to form a tapered shrinkage. However, since the metal pipe needs to be manually loaded before the shrinking operation can be performed, it needs to be manually removed after the shrinking is completed, which has the problem of low efficiency.

[0004] Therefore, it is particularly important to design a bidirectional automatic shrinking device for metal pipes to solve the above-mentioned defects. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model designs a bidirectional automatic shrinking device for metal tubes, which aims to solve the technical problem that when shrinking the metal tube by a hydraulic shrinking machine under the prior art, the metal tube needs to be manually loaded before the shrinking operation can be carried out, and the metal tube needs to be manually removed after the shrinking is completed, resulting in low efficiency.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A bidirectional automatic shrinking device for metal tubes comprises a frame, hydraulic cylinders are fixedly mounted on the top ends of the left and right sides of the frame, processing pallets are fixedly mounted on the left and right ends of the inner side of the frame, metal tubes to be processed are mounted on the inner side of the processing pallets, shrinking dies are fixedly connected on the driving ends of the hydraulic cylinders and on the left and right sides of the metal tubes to be processed, a material changing mechanism is fixedly mounted inside the frame and below the metal tubes to be processed, a loading tray is fixedly mounted on the back side of the frame, and a material guide rack is fixedly mounted on the front side of the frame.

[0008] As a preferred solution of the utility model, a processing bracket groove is provided on the inner side of the processing support plate, and a blocking groove is provided on the rear end of the processing support plate.

[0009] As a preferred solution of the utility model, a necking groove is provided on the inner side of the necking die head, and a center column is fixedly connected to the inner side of the necking groove.

[0010] As a preferred solution of the utility model, the material changing mechanism includes a fixed plate fixedly installed in the middle of the inner side of the frame, a first cylinder is fixedly installed on the bottom of the fixed plate, a top plate is fixedly connected to the driving end of the first cylinder, and material changing plates are fixedly connected to the left and right ends of the top plate and on the inner side of the processing support plate.

[0011] As a preferred solution of the utility model, a guide plate is fixedly connected between one group of the material changing plates and the processing support plate, the outer side of the material changing plates is slidably connected to the guide plate via a guide column, and a material ejecting groove is provided on the inner side of both groups of material changing plates.

[0012] As a preferred solution of the utility model, a material guide plate is fixedly installed on the front end of the loading tray, a second cylinder is fixedly installed on the back of the material guide plate, a baffle is fixedly installed on the driving end of the second cylinder, and the left and right ends of the front side of the baffle are slidably connected to the baffle through sliders.

[0013] As a preferred solution of the utility model, the material guide rack is installed obliquely on the front side of the frame, and both ends of the bottom of the material guide rack are fixedly connected to the frame through a mounting frame.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] In the utility model, through the coordinated design of the processing support plate, the material changing mechanism, the loading tray and the material guide rack, when the metal tube to be processed is subjected to the shrinking processing, it is only necessary to first place multiple groups of metal tubes to be processed on the loading tray, block the metal tubes to be processed by the baffle plate, intermittently control the return stroke of the second cylinder and then push it up, and the baffle plate is connected to the slider to make it move up and down stably, so that the multiple groups of metal tubes to be processed are discharged at intervals through the up and down movement of the baffle plate, and then the shrinking processing is coordinated to realize automatic loading;

[0016] The released metal tube to be processed automatically rolls into the inner side of the blocking groove at the rear end of the processing pallet for blocking. At this time, the first cylinder at the bottom of the fixed plate is started to push up the top plate, and the metal tube to be processed at the blocking groove is pushed up by using two sets of material changing plates, and then introduced into the processing bracket in the processing pallet for shrinking processing. After the shrinking processing of the metal tube to be processed is completed, the material changing plate is controlled to push up, and the metal tube to be processed is pushed out of the processing bracket through the front end of the material changing plate, and then enters the inner side of the guide rack to complete automatic unloading. When the material changing plate is pushed up, the next metal tube to be processed will be pushed into the processing bracket from the blocking groove for further processing, so that the shrinking operation can be automatically performed without manual loading and unloading, which greatly improves the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the inner structure of the frame of the utility model;

[0019] Figure 3 This is a schematic diagram of the processing support plate structure of the utility model;

[0020] Figure 4 This is a left view of the material changing mechanism structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the loading tray of the utility model from the first perspective;

[0022] Figure 6 This is a schematic structural diagram of the loading tray of the utility model from a second viewing angle.

[0023] In the figure: 1. frame; 2. hydraulic cylinder; 3. processing support plate; 301. processing bracket; 302. blocking groove; 4. metal pipe to be processed; 5. shrinking die head; 501. shrinking groove; 502. center column; 6. material changing mechanism; 601. fixed plate; 602. first cylinder; 603. top plate; 604. material changing plate; 605. guide plate; 606. guide column; 607. material ejecting groove; 7. loading tray; 701. material guide plate; 702. second cylinder; 703. baffle; 704. slide block; 8. material guide frame; 801. mounting frame. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] Example:

[0026] See also Figure 1-Figure 6 , the utility model provides a technical solution:

[0027] A bidirectional automatic shrinking device for metal pipes comprises a frame 1, hydraulic cylinders 2 are fixedly mounted on the tops of the left and right sides of the frame 1, processing pallets 3 are fixedly mounted on the left and right ends of the inner side of the frame 1, a metal pipe 4 to be processed is mounted on the inner side of the processing pallet 3, shrinking dies 5 are fixedly connected on the driving end of the hydraulic cylinder 2 and on the left and right sides of the metal pipe 4 to be processed, a material changing mechanism 6 is fixedly mounted inside the frame 1 and below the metal pipe 4 to be processed, a loading tray 7 is fixedly mounted on the back of the frame 1, and a material guide rack 8 is fixedly mounted on the front of the frame 1.

[0028] First, a processing bracket 301 is opened on the inner side of the processing pallet 3, and a blocking groove 302 is opened at the rear end of the processing pallet 3. The metal tube 4 to be processed is loaded from the loading tray 7, and then rolled into the inner side of the blocking groove 302 at the rear end of the processing pallet 3 for blocking, and then the metal tube 4 to be processed is pushed into the inner side of the processing bracket 301 through the material changing mechanism 6, and then the shrinking processing can be carried out.

[0029] Furthermore, a shrinking groove 501 is opened on the inner side of the shrinking die 5, and a center column 502 is fixedly connected to the inner side of the shrinking groove 501. When the metal tube 4 to be processed is located in the processing bracket 301 on the inner side of the processing support plate 3, the hydraulic cylinder 2 is started to cover the shrinking die 5 on both ends of the metal tube 4 to be processed. After the two ends of the metal tube 4 to be processed enter the inner side of the shrinking groove 501, the two-way shrinking processing of the metal tube 4 to be processed is completed under the action of hydraulic pressure. At the same time, the center column 502 is inserted into the inner side of the two ends of the metal tube 4 to be processed to avoid too small shrinkage.

[0030] Then, the material changing mechanism 6 includes a fixed plate 601 fixedly installed in the middle of the inner side of the frame 1, a first cylinder 602 is fixedly installed at the bottom of the fixed plate 601, a top plate 603 is fixedly connected to the driving end of the first cylinder 602, and the left and right ends of the top plate 603 and the inner side of the processing support plate 3 are fixedly connected with a material changing plate 604. When the metal tube 4 to be processed is subjected to shrinking processing, the material is first loaded from the loading tray 7, and then the metal tube 4 to be processed rolls into the inner side of the blocking groove 302 at the rear end of the processing support plate 3 for blocking. At this time, the first cylinder 602 at the bottom of the fixed plate 601 is started to push up the top plate 603, and the metal tube 4 to be processed at the blocking groove 302 is pushed up by two groups of material changing plates 604, and then introduced into the processing bracket 301 in the processing support plate 3 for shrinking processing.

[0031] Furthermore, a guide plate 605 is fixedly connected between one set of the material exchange plates 604 and the processing support plate 3, and the outer side of the material exchange plate 604 is slidably connected to the guide plate 605 through a guide column 606. The inner sides of the two sets of material exchange plates 604 are provided with a material ejection groove 607, and the guide column 606 and the guide plate 605 are used to limit the distance of the material exchange plate 604 from being ejected. The metal tube 4 to be processed at the blocking groove 302 is ejected through the material ejection groove 607 and introduced into the processing bracket 301 in the processing support plate 3 for shrinking. After the shrinking process of the metal tube 4 to be processed is completed, the material changing plate 604 is controlled to push up, and the metal tube 4 to be processed is pushed out from the processing bracket 301 through the front end of the material changing plate 604, and then enters the inner side of the guide frame 8 to complete automatic unloading. When the material changing plate 604 is pushed up, the next metal tube 4 to be processed will be pushed into the processing bracket 301 from the blocking groove 302 to continue processing, so that the shrinking operation can be automatically performed without manual loading and unloading, which greatly improves the processing efficiency.

[0032] Secondly, a guide plate 701 is fixedly installed at the front end of the loading tray 7, a second cylinder 702 is fixedly installed at the back of the guide plate 701, and a baffle 703 is fixedly installed on the driving end of the second cylinder 702. The left and right ends of the front side of the baffle 703 are slidably connected to the baffle 703 through a slider 704. When processing the metal tube 4 to be processed, it is only necessary to place multiple groups of metal tubes 4 to be processed on the loading tray 7 first, block the metal tube 4 to be processed by the baffle 703, intermittently control the second cylinder 702 to return and then push up, and under the connection of the slider 704, the baffle 703 can be stably moved up and down, so that the baffle 703 can move up and down to discharge multiple groups of metal tubes 4 to be processed at intervals, and then cooperate with the shrinking process to realize automatic loading.

[0033] Finally, the material guide rack 8 is installed obliquely on the front side of the frame 1, and both ends of the bottom of the material guide rack 8 are fixedly connected to the frame 1 through the mounting frame 801. The material guide rack 8 is installed obliquely on the front side of the frame 1 through the mounting frame 801. After the metal pipe 4 to be processed that has been processed by the shrinking process is ejected from the processing bracket 301, it automatically falls into the inner side of the material guide rack 8 for unloading. It is only necessary to place a material basket for storing materials at the bottom of the material guide rack 8.

[0034] In this embodiment, the implementation scenario is specifically as follows: when the metal tube 4 to be processed is subjected to shrinking processing, it is only necessary to first place multiple groups of metal tubes 4 to be processed on the loading tray 7, block the metal tube 4 to be processed by the baffle 703, intermittently control the return stroke of the second cylinder 702 and then push it up, and the baffle 703 is connected to the slider 704 to make the baffle 703 move up and down stably, so that the multiple groups of metal tubes 4 to be processed are discharged at intervals by the up and down movement of the baffle 703, and the released metal tubes 4 to be processed automatically roll into the inner side of the blocking groove 302 at the rear end of the processing support plate 3 for blocking, then start the first cylinder 602 at the bottom of the fixed plate 601 to push up the top plate 603, and use two groups of material changing plates 604 to push up the metal tube 4 to be processed at the blocking groove 302, and then introduce it into the processing bracket 301 in the processing support plate 3 for shrinking processing, and start The hydraulic cylinder 2 sleeves the shrinking die head 5 on the two ends of the metal tube 4 to be processed. After the two ends of the metal tube 4 to be processed enter the inner side of the shrinking groove 501, the two-way shrinking processing of the metal tube 4 to be processed is completed under the action of hydraulic pressure. After the shrinking processing of the metal tube 4 to be processed is completed, the material changing plate 604 is controlled to push up, and the metal tube 4 to be processed is pushed out from the processing bracket 301 through the front end of the material changing plate 604, and then enters the inner side of the guide rack 8 to complete automatic unloading. When the material changing plate 604 is pushed up, the next metal tube 4 to be processed will be pushed into the processing bracket 301 from the blocking groove 302 to continue processing. The whole operation process is simple and convenient. Compared with the existing two-way automatic shrinking device for metal tubes, the utility model can automatically perform shrinking operations without manual loading and unloading, which greatly improves the processing efficiency.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bidirectional automatic shrinking device for a metal tube, comprising a frame (1), characterized in that: Hydraulic cylinders (2) are fixedly mounted on the tops of the left and right sides of the frame (1); processing support plates (3) are fixedly mounted on the left and right ends of the inner side of the frame (1); a metal pipe (4) to be processed is mounted on the inner side of the processing support plate (3); a shrinking die head (5) is fixedly connected to the driving end of the hydraulic cylinder (2) and located on the left and right sides of the metal pipe (4) to be processed; a material changing mechanism (6) is fixedly mounted inside the frame (1) and located below the metal pipe (4) to be processed; a loading tray (7) is fixedly mounted on the back of the frame (1); and a material guide rack (8) is fixedly mounted on the front of the frame (1).

2. A bidirectional automatic shrinking device for metal pipes according to claim 1, characterized in that: A processing bracket groove (301) is provided on the inner side of the processing support plate (3), and a blocking groove (302) is provided on the rear end of the processing support plate (3).

3. The bidirectional automatic shrinking device for metal pipes according to claim 1, characterized in that: A shrinking groove (501) is provided on the inner side of the shrinking die head (5), and a center column (502) is fixedly connected to the inner side of the shrinking groove (501).

4. The bidirectional automatic shrinking device for metal pipes according to claim 1, characterized in that: The material changing mechanism (6) comprises a fixing plate (601) fixedly mounted at the middle of the inner side of the frame (1); a first cylinder (602) is fixedly mounted at the bottom of the fixing plate (601); a top plate (603) is fixedly connected to the driving end of the first cylinder (602); and material changing plates (604) are fixedly connected to the left and right ends of the top plate (603) and located on the inner side of the processing support plate (3).

5. A bidirectional automatic shrinking device for metal pipes according to claim 4, characterized in that: A guide plate (605) is fixedly connected between one group of the material changing plates (604) and the processing support plate (3); the outer side of the material changing plates (604) is slidably connected to the guide plate (605) via a guide column (606); and a material ejection groove (607) is provided on the inner side of both groups of the material changing plates (604).

6. The bidirectional automatic shrinking device for metal pipes according to claim 1, characterized in that: A material guide plate (701) is fixedly mounted on the front end of the loading tray (7), a second cylinder (702) is fixedly mounted on the back of the material guide plate (701), a baffle (703) is fixedly mounted on the driving end of the second cylinder (702), and both left and right ends of the front side of the baffle (703) are slidably connected to the baffle (703) via a slider (704).

7. The bidirectional automatic shrinking device for metal pipes according to claim 1, characterized in that: The material guide frame (8) is obliquely installed on the front side of the frame (1), and both ends of the bottom of the material guide frame (8) are fixedly connected to the frame (1) via a mounting frame (801).

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