A special mold and bending machine for bending pipe fittings for railway freight cars

Abstract

This utility model discloses a special mold and bending machine for bending railway freight car pipe fittings. Specifically, it relates to a bending machine. The mold includes: a second bed pivotally connected to one side of a first bed, both the first and second beds having rotatably mounted load-bearing guide rollers; limiting guide rollers driven by a fixedly mounted drive motor and positioned between the two load-bearing guide rollers, with the height difference between the limiting guide rollers and the load-bearing guide rollers equal to the diameter of the pipe fitting; and a hydraulic telescopic module, the output end of which is rotatably connected to the end of the second bed. This utility model has a simple structure, is convenient and quick to operate, and can meet the needs of continuous bending operations of different shapes.

Description

Technical Field

[0001] This utility model relates to bending machines, specifically to a special mold and bending machine for bending railway freight car pipe fittings. Background Technology

[0002] Railway freight car pipe fittings are relatively large, and in the actual bending process, the shape of the pipe fittings needs to be continuously and irregularly bent. How to solve this problem is something we look forward to! Utility Model Content

[0003] The purpose of this utility model is to provide a special mold and bending machine for bending railway freight car pipe fittings, in order to solve the above-mentioned problems.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a special mold for bending railway freight car pipe fittings, comprising:

[0005] A second bed is pivotally connected to one side of a first bed that is fixedly installed. Both the first and second bed bodies are rotatably equipped with load-bearing guide rollers.

[0006] A fixedly installed drive motor;

[0007] A rotatable guide roller, driven by the drive motor, is positioned between two carrying guide rollers. The two carrying guide rollers are located on the same horizontal plane, and the rotatable guide roller is parallel to the horizontal plane. The vertical distance between the two guide rollers is equal to the circumference diameter of the pipe to be bent.

[0008] The hydraulic telescopic module has a connecting piece rotatably arranged between its output end and the end of the second bed body.

[0009] Preferably, the system also includes a base on which upright plates are symmetrically mounted at the pivot point of the first bed and the second bed and are symmetrically distributed about the center of the two beds. The drive motor is fixedly mounted on the upright plates, and the limiting guide rollers are mounted on the upright plates through rotary bearings.

[0010] Preferably, an I-shaped support steel plate is fixedly installed on the base, and the I-shaped support steel plate is fixedly welded to the first bed body.

[0011] Preferably, bearing mounting seats are symmetrically fixedly installed on the bed surfaces of the second bed and the first bed, while the bearing guide rollers are fixedly installed on the inner rings of the two coaxial bearing mounting seats.

[0012] Preferably, bearing mounting seats are symmetrically fixedly installed on the bed of the first bed, while a round rod fixedly welded to the end of the second bed is fixedly installed on the inner ring of the bearing mounting seat, and a hard rubber cylinder is fixedly installed on the round rod.

[0013] Preferably, a single-port threaded sleeve is symmetrically fixed on the bearing guide roller, and a positioning contact plate is internally threaded onto the single-port threaded sleeve, with the two positioning contact plates being distributed adjacent to each other.

[0014] Preferably, the end face of the positioning contact plate is rotatably provided with a plurality of bullseye balls arranged in a circumferential array.

[0015] Preferably, the positioning contact plate is threaded with a positioning nut that engages with the single-port threaded sleeve port in a retractable manner.

[0016] A bending machine includes the special mold for bending railway freight car pipe fittings as described in the above solution.

[0017] In the above technical solution, the special mold and bending machine for bending railway freight car pipe fittings provided by this utility model have the following beneficial effects: the railway freight car pipe fitting is passed between the carrying guide roller and the limiting guide roller, and then the hydraulic telescopic module is activated to extend or retract, thereby changing the tilt angle of the second bed. Then, the limiting guide roller is driven to rotate circumferentially by the drive motor to realize the conveying of the railway freight car pipe fitting. During the process, the change of the tilt angle of the second bed allows the railway freight car pipe fitting to be bent into the required shape. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0020] Figure 2 A schematic diagram of the hydraulic telescopic module, connector, and second bed structure provided for an embodiment of this utility model;

[0021] Figure 3 Provided for the embodiments of this utility model Figure 1 A partially enlarged structural diagram.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. First bed; 2. Second bed; 3. Bearing guide roller; 31. Single-end threaded sleeve; 32. Bullseye ball bearing; 33. Positioning contact plate; 34. Positioning nut; 4. Limiting guide roller; 5. Drive motor; 6. Hydraulic telescopic module; 7. Connecting parts; 8. Hard rubber cylinder; 100. Base; 101. Vertical plate; 102. I-beam support steel plate; 200. Bearing mounting seat. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] like Figure 1-3 As shown, a special mold and bending machine for bending railway freight car pipe fittings includes:

[0026] A second bed 2 is pivotally connected to one side of the first bed 1, which is fixedly installed. Both the first bed 1 and the second bed 2 are rotatably equipped with load-bearing guide rollers 3.

[0027] The limiting guide roller 4 is driven to rotate by the drive motor 5 fixedly mounted on the vertical plate 101, and the limiting guide roller 4 is distributed between the two carrying guide rollers 3, combined with Figure 1 As shown, the two carrying guide rollers 3 are distributed on the same horizontal plane, and the limiting guide rollers 4 are distributed parallel to the horizontal plane. The vertical distance between the carrying guide rollers 3 and the limiting guide rollers 4 is equal to the circumference diameter of the pipe to be bent.

[0028] The hydraulic telescopic module 6 has a connecting piece 7 rotatably mounted on its output end, and the connecting piece 7 is rotatably connected to the rotating shaft at the end of the second bed 2.

[0029] Specifically, the hydraulic telescopic module 6 is a hydraulic jacking rod or a pneumatic jacking rod.

[0030] Furthermore, upright plates 101 are symmetrically mounted on the base 100 at the pivot point of the first bed 1 and the second bed 2, and are symmetrically distributed about the center of the two. The drive motor 5 is fixedly mounted on the upright plates 101, while the limiting guide rollers 4 are mounted on the upright plates 101 through rotary bearings. An I-shaped support steel plate 102 is fixedly mounted on the base 100, and the I-shaped support steel plate 102 is fixedly welded to the first bed 1.

[0031] Furthermore, bearing mounting seats 200 are symmetrically fixedly installed on the beds of the second bed 2 and the first bed 1, while the bearing guide rollers 3 are fixedly installed on the inner rings of the two coaxial bearing mounting seats.

[0032] The above technology allows railway freight car pipes to pass between the carrying guide roller 3 and the limiting guide roller 4, and then the hydraulic telescopic module 6 is activated to extend or retract, thereby changing the tilt angle of the second bed 2. Then, the limiting guide roller 4 is driven to rotate circumferentially by the drive motor 5 to realize the transportation of railway freight car pipes. During the process, the change in the tilt angle of the second bed 2 makes the railway freight car pipes bend into the required shape.

[0033] As a further embodiment of this utility model, bearing mounting seats are symmetrically fixedly installed on the bed of the first bed 1, while a round rod fixedly welded to the end of the second bed 2 is fixedly installed on the inner ring of the bearing mounting seat, and a hard rubber cylinder 8 is fixedly installed on the round rod. The hard rubber cylinder 8 provides soft contact for the bending process of railway freight car pipe fittings.

[0034] As another embodiment further provided by this utility model, combined with Figure 3 As shown, a single-port threaded sleeve 31 is symmetrically fixed on the bearing guide roller 3. The single-port threaded sleeve 31 is internally threaded with a positioning contact plate 33, and the two positioning contact plates 33 are distributed adjacent to each other.

[0035] Furthermore, the end face of the positioning contact plate 33 is rotatably provided with a plurality of bullseye balls 32 arranged in a circumferential array.

[0036] Furthermore, the positioning contact plate 33 is threadedly connected to a positioning nut 34 that engages with the port of the single-port threaded sleeve 31 in a retractable manner.

[0037] Specifically, in this embodiment, by rotating the positioning contact plate 33, the distance between the two positioning contact plates 33 is reduced, thereby adapting to the specifications of different railway freight car pipe fittings. Then, when the railway freight car pipe fitting is being driven, it contacts the bullseye ball 32 to reduce friction.

[0038] It should be noted that the aforementioned fixed installations and settings can be installed using known connection methods such as welding, bolts, snap-fit, and screws; while rotating installations and hinges are installed using rotary bearings, and sliding installations are installed using sliding bearings. These installation methods are all common knowledge to those skilled in the art, and can be directly determined by those skilled in the art based on the structural characteristics; therefore, they will not be described in detail.

[0039] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A special mold for bending railway freight car pipe fittings, characterized in that, include: A second bed (2) is pivotally connected to one side of the first bed (1) which is fixedly installed. Both the first bed (1) and the second bed (2) are rotatably equipped with a bearing guide roller (3). Fixed drive motor (5); A rotatable guide roller (4) is driven by the drive motor (5). The rotatable guide roller (4) is distributed between two carrying guide rollers (3). The two carrying guide rollers (3) are distributed on the same horizontal plane. The rotatable guide roller (4) is distributed parallel to the horizontal plane, and the vertical distance between the two is equal to the circumference diameter of the pipe to be bent. The hydraulic telescopic module (6) has a connecting piece (7) rotatably disposed between its output end and the end of the second bed body (2).

2. The special mold for bending railway freight car pipe fittings according to claim 1, characterized in that, It also includes a base (100) on which upright plates (101) are symmetrically mounted at the pivot point of the first bed (1) and the second bed (2) and are symmetrically distributed about the center of the two. The drive motor (5) is fixedly mounted on the upright plate (101), and the limiting guide roller (4) is mounted on the upright plate (101) through a rotary bearing.

3. A special mold for bending railway freight car pipe fittings according to claim 2, characterized in that, An I-shaped support steel plate (102) is fixedly installed on the base (100), and the I-shaped support steel plate (102) is fixedly welded to the first bed body (1).

4. A special mold for bending railway freight car pipe fittings according to claim 1, characterized in that, The second bed (2) and the first bed (1) are symmetrically fixed with bearing mounting seats, while the bearing guide roller (3) is fixedly installed on the inner ring of the two coaxial bearing mounting seats.

5. A special mold for bending railway freight car pipe fittings according to claim 1, characterized in that, The first bed (1) has bearing mounting seats symmetrically fixedly installed on its bed, while the round rod fixedly welded to the end of the second bed (2) is fixedly installed on the inner ring of the bearing mounting seat, and a hard rubber cylinder (8) is fixedly installed on the round rod.

6. A special mold for bending railway freight car pipe fittings according to claim 1, characterized in that, A single-port threaded sleeve (31) is symmetrically fixed on the bearing guide roller (3). The single-port threaded sleeve (31) is internally threaded with a positioning contact plate (33), and the two positioning contact plates (33) are distributed adjacent to each other.

7. A special mold for bending railway freight car pipe fittings according to claim 6, characterized in that, The end face of the positioning contact plate (33) is rotatably provided with a plurality of bullseye balls (32) arranged in a circumferential array.

8. A special mold for bending railway freight car pipe fittings according to claim 7, characterized in that, The positioning contact plate (33) is threaded with a positioning nut (34) that engages with the port of the single-port threaded sleeve (31) in a disengaging manner.

9. A bending machine, characterized in that, Including the special mold for bending railway freight car pipe fittings as described in any one of claims 1-8.

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