Positioning and limiting device of pipe contracting machine

Abstract

The utility model relates to the technical field of pipe shrinking machines, in particular to a positioning and limiting device of a pipe shrinking machine, which realizes the positioning and limiting treatment operation on workpieces through the matching of a clamping mechanism and a plurality of positioning mechanisms, and is convenient for the positioning operation on the workpieces with different sizes through the arrangement of a plurality of positioning plates and a plurality of springs. Therefore, the working efficiency is improved, and the practicability is high; a fixing plate is fixedly installed on the workbench, two first electric cylinders are symmetrically and fixedly installed on the fixing plate, the two first electric cylinders are connected through a pipe shrinking machine, a limiting plate is fixedly installed on the workbench, a scale plate is arranged on the limiting plate, a limiting hole is formed in the limiting plate, and a clamping mechanism is arranged on the workbench and comprises a containing plate. A placing groove is formed in the placing plate, two second electric cylinders are symmetrically and fixedly installed at the bottom end of the placing plate, two working grooves are formed in the workbench, and the ends, away from the placing plate, of the two second electric cylinders are fixedly connected with the working grooves.

Description

Technical Field

[0001] The utility model relates to the technical field of tube shrinking machines, and specifically relates to a positioning and limiting device for a tube shrinking machine. Background Technique

[0002] A tube shrinking machine expands and shrinks the end face of a pipe fitting under normal conditions, and is a fully hydraulic tube end processing machine controlled by an integrated control touch display screen. By replacing the mold, the tube end processing and forming such as expanding the tube, shrinking the tube, bulging, and upsetting ribs can be carried out on the pipe fitting. The processing mode can be freely determined as manual, jogging or automatic according to the needs of users. The machine is composed of a fuel tank, a bed body, a slider, a main oil cylinder, a mold core rod (optional), a limiting oil cylinder, a pressing oil cylinder, a clamping mold, an axial positioning oil cylinder, an axial positioning angle iron and other main parts.

[0003] When the tube shrinking machine processes a workpiece, a limiting device is needed to limit the workpiece to prevent the workpiece from shifting during processing. However, the existing limiting device cannot adapt to pipe fittings with different outer diameters, and the workpiece is placed by experience, and the processing length of the workpiece cannot be effectively determined, which reduces the work efficiency and has poor practicability. Therefore, a positioning and limiting device for a tube shrinking machine is needed to improve the above problems. Content of the Utility Model

[0004] (I) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the utility model provides a positioning and limiting device for a tube shrinking machine, which realizes the positioning and limiting processing operation of the workpiece through the cooperation of a clamping mechanism and multiple positioning mechanisms. Through the setting of multiple positioning plates and multiple springs, it is convenient to position workpieces of different sizes, thereby improving the work efficiency and having high practicability.

[0006] (II) Technical Solution

[0007] To achieve the above purpose, the utility model provides the following technical solution: A positioning and limiting device for a tube shrinking machine, including a workbench, on which a fixed plate is fixedly installed. Two first electric cylinders are symmetrically and fixedly installed on the fixed plate. The two first electric cylinders are connected through a tube shrinking machine. A limiting plate is fixedly installed on the workbench. A scale plate is arranged on the limiting plate, and a limiting hole is opened on the limiting plate;

[0008] A clamping mechanism is arranged on the workbench. The clamping mechanism includes a placing plate, on which a placing groove is opened. Two second electric cylinders are symmetrically and fixedly installed at the bottom end of the placing plate. Two working grooves are opened on the workbench. The ends of the two second electric cylinders away from the placing plate are fixedly connected with the working grooves. Two electric push rods are symmetrically and fixedly installed on the workbench. The two electric push rods are connected through a mounting plate;

[0009] Positioning mechanisms are provided on both the mounting plate and the limiting plate. One of the positioning mechanisms includes a positioning plate, on which two telescopic rods are symmetrically and fixedly mounted. Springs are sleeved on both telescopic rods, and both ends of the two springs are fixedly connected to the positioning plate and the mounting plate respectively;

[0010] A support mechanism is provided at the bottom end of the workbench for supporting the workbench.

[0011] Preferably, the support mechanism includes four columns, which are symmetrically and fixedly mounted at the bottom end of the workbench, and a stable seat is provided at the bottom end of each column.

[0012] Furthermore, a rubber pad is provided on the placement groove.

[0013] Still further, four telescopic columns are symmetrically and fixedly mounted at the bottom end of the mounting plate, and one end of each of the four telescopic columns away from the mounting plate is fixedly connected to the workbench.

[0014] On the basis of the foregoing solution, anti-slip patterns are provided at the bottom end of each positioning plate.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the present utility model provides a positioning and limiting device for a pipe shrinking machine, which has the following beneficial effects:

[0017] For this positioning and limiting device of the pipe shrinking machine, the workpiece to be processed is placed on the placement plate, and the height of the workpiece is adjusted by two second electric cylinders for adjustment according to actual needs. The mounting plate is driven to move by two electric push rods. Through the contact of multiple positioning plates with the workpiece, multiple springs are compressed, so as to complete the limiting and positioning operation of the workpiece. The processing length of the workpiece is adjusted through the scale plate, thus realizing the positioning and limiting processing operation of the workpiece. Through the setting of multiple positioning plates and multiple springs, it is convenient to position workpieces of different sizes, thereby improving work efficiency and having high practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 is a schematic sectional structure diagram of the present utility model;

[0020] Figure 3 is the present utility model Figure 2 an enlarged schematic diagram of part A in;

[0021] Figure 4 is a schematic diagram of the electric push rod and the mounting plate of the present utility model.

[0022] Reference numerals in the drawings: 1, workbench; 2, fixed plate; 3, first electric cylinder; 4, pipe shrinking machine; 5, limit plate; 6, placing plate; 7, electric push rod; 8, mounting plate; 9, telescopic column; 10, positioning plate; 11, telescopic rod; 12, spring; 13, second electric cylinder; 14, support column; 15, stable seat; 16, scale plate; 17, rubber pad. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment

[0024] Please refer to Figure 1 , Figure 2 and Figure 4 , a positioning and limiting device for a pipe shrinking machine, including a workbench 1, on which a fixed plate 2 is fixedly installed. Two first electric cylinders 3 are symmetrically and fixedly installed on the fixed plate 2. The two first electric cylinders 3 are connected by a pipe shrinking machine 4. A limit plate 5 is fixedly installed on the workbench 1. A scale plate 16 is arranged on the limit plate 5, and a limit hole is opened on the limit plate 5.

[0025] Please refer to Figure 1 , Figure 2 and Figure 4 , a clamping mechanism is arranged on the workbench 1. The clamping mechanism includes a placing plate 6, on which a placing groove is opened. The workpiece to be processed is placed on the placing plate 6. Two second electric cylinders 13 are symmetrically and fixedly installed at the bottom end of the placing plate 6. Two working grooves are opened on the workbench 1. The ends of the two second electric cylinders 13 away from the placing plate 6 are fixedly connected to the working grooves. The height of the workpiece is adjusted by the two second electric cylinders 13, and the adjustment operation is carried out according to actual needs. Two electric push rods 7 are symmetrically and fixedly installed on the workbench 1. The two electric push rods 7 are connected by a mounting plate 8. The mounting plate 8 is driven to move by the two electric push rods 7.

[0026] Please refer to Figures 1-4, positioning mechanisms are provided on both the mounting plate 8 and the limiting plate 5. One of the positioning mechanisms includes a positioning plate 10, on which two telescopic rods 11 are symmetrically and fixedly mounted. Springs 12 are sleeved on both of the two telescopic rods 11. The two ends of the two springs 12 are respectively fixedly connected to the positioning plate 10 and the mounting plate 8. Through the contact of multiple positioning plates 10 with the workpiece, the multiple springs 12 are compressed, thereby completing the limiting and positioning operation of the workpiece. The processing length of the workpiece is adjusted through the scale plate 16, thereby realizing the positioning and limiting processing operation of the workpiece. Through the arrangement of multiple positioning plates 10 and multiple springs 12, it is convenient to position workpieces of different sizes, thereby improving work efficiency and having high practicability.

[0027] Please refer to Figure 1 , Figure 2 and Figure 4 , a support mechanism is provided at the bottom end of the workbench 1 for supporting the workbench 1. The support mechanism includes four support columns 14, and the four support columns 14 are symmetrically and fixedly mounted at the bottom end of the workbench 1. A stabilizing seat 15 is provided at the bottom end of each support column 14. Through the installation of multiple support columns 14 and multiple stabilizing seats 15, the workbench 1 is supported, making the workbench 1 more stable.

[0028] Please refer to Figure 4 , a rubber pad 17 is provided on the placement groove. Through the setting of the rubber pad 17, the friction force is increased, making the workpiece more stable.

[0029] Please refer to Figure 1 , Figure 2 and Figure 4 , it should also be noted that four telescopic columns 9 are symmetrically and fixedly mounted at the bottom end of the mounting plate 8. One end of the four telescopic columns 9 away from the mounting plate 8 is fixedly connected to the workbench 1. Through the setting of the four telescopic columns 9, the mounting plate 8 is made more stable.

[0030] Please refer to Figures 1-4 , an anti-slip pattern is provided at the bottom end of each positioning plate 10. Through the setting of the anti-slip pattern, the workpiece is made more stable.

[0031] In summary, when the pipe shrinking machine positioning and limiting device is in use, the workpiece to be processed is placed on the placement plate 6. The friction is increased through the setting of the rubber pad 17. The placement plate 6 is adjusted by the two second electric cylinders 13, and then the height of the workpiece is adjusted, so as to carry out the adjustment operation according to actual needs. The mounting plate 8 is driven to move by the two electric push rods 7. Through the contact between the multiple positioning plates 10 and the workpiece, the multiple springs 12 are compressed. The workpiece is limited by the cooperation of the multiple springs 12 and the placement plate 6, so as to complete the limiting and positioning operation of the workpiece. The processing length of the workpiece is observed and adjusted through the scale plate 16. The setting of the multiple positioning plates 10 and the multiple springs 12 facilitates the positioning operation of workpieces of different sizes. By starting the two first electric cylinders 3, the pipe shrinking machine 4 can be driven to work.

[0032] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning and limiting device for a pipe shrinking machine, comprising a workbench (1), characterized in that: A fixed plate (2) is fixedly installed on the workbench (1). Two first electric cylinders (3) are symmetrically and fixedly installed on the fixed plate (2). The two first electric cylinders (3) are connected by a pipe shrinking machine (4). A limit plate (5) is fixedly installed on the workbench (1). A scale plate (16) is arranged on the limit plate (5), and a limit hole is opened on the limit plate (5). A clamping mechanism is arranged on the workbench (1). The clamping mechanism includes a placement plate (6). A placement groove is opened on the placement plate (6). Two second electric cylinders (13) are symmetrically and fixedly installed at the bottom end of the placement plate (6). Two working grooves are opened on the workbench (1). The ends of the two second electric cylinders (13) away from the placement plate (6) are fixedly connected to the working grooves. Two electric push rods (7) are symmetrically and fixedly installed on the workbench (1). The two electric push rods (7) are connected by a mounting plate (8). Positioning mechanisms are arranged on both the mounting plate (8) and the limit plate (5). One of the positioning mechanisms includes a positioning plate (10). Two telescopic rods (11) are symmetrically and fixedly installed on the positioning plate (10). Springs (12) are sleeved on the two telescopic rods (11). The two ends of the two springs (12) are fixedly connected to the positioning plate (10) and the mounting plate (8) respectively. A support mechanism is arranged at the bottom end of the workbench (1) for supporting the workbench (1).

2. The positioning and limiting device of a pipe shrinking machine according to claim 1, wherein: The support mechanism includes four support columns (14). The four support columns (14) are symmetrically and fixedly installed at the bottom end of the workbench (1). A stable seat (15) is arranged at the bottom end of each support column (14).

3. The positioning and limiting device of a pipe shrinking machine according to claim 2, wherein: A rubber pad (17) is arranged on the placement groove.

4. The positioning and limiting device of a tube shrinking machine according to claim 3, characterized in that: Four telescopic columns (9) are symmetrically and fixedly installed at the bottom end of the mounting plate (8). The ends of the four telescopic columns (9) away from the mounting plate (8) are fixedly connected to the workbench (1).

5. The positioning and limiting device of a pipe shrinking machine according to claim 4, characterized in that: An anti-slip pattern is arranged at the bottom end of each positioning plate (10).

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