Tube plate machining bending machine with limiting mechanism

Abstract

The utility model belongs to the field of bending machines, and particularly relates to a tube plate machining bending machine with a limiting mechanism, which comprises a base, a support is fixedly connected to the upper end of the base, an air cylinder is fixedly mounted in the middle of the upper end of the support, and an air cylinder rod of the air cylinder penetrates through the support and is in sliding connection with the support. An air cylinder is arranged on the base, a bending mechanism is arranged on an air cylinder rod of the air cylinder, two limiting plates hinged to each other are hinged to the upper end of the base, baffles are fixedly connected to the front ends and the rear ends of the limiting plates, and an adjusting mechanism is arranged on the base. The motor drives the two-way screw to rotate and the sliding plate to do threaded motion, so that the top plate moves to drive the angle of the limiting plate to change, the device can limit the maximum bending angle of a tube plate, and it is ensured that excessive bending cannot be generated in the tube plate bending process.

Description

Technical Field

[0001] This utility model relates to the field of bending machine technology, specifically a tube sheet bending machine with a limiting mechanism. Background Technology

[0002] Utility model patent CN222306958U discloses a bending machine for processing stainless steel tube sheets. This utility model solves the problem that existing bending machines for processing stainless steel tube sheets cannot treat the surface of the stainless steel tube sheets when bending them, leading to cracks or breaks. The bending machine for processing stainless steel tube sheets includes a support plate. A transmission mechanism for moving the stainless steel tube sheet and a bending mechanism for bending the stainless steel tube sheet are connected through the upper surface of the support plate. An adjustment mechanism for adjusting the bending angle of the bending mechanism is fixedly connected to the lower surface of the support plate. A preheating mechanism for treating the surface of the stainless steel tube is fixedly connected to the upper surface of the support plate. The preheating mechanism includes a holding box A and a fixing plate A fixedly connected to the upper surface of the support plate. This achieves the effect of preheating the surface of the stainless steel tube sheet when bending it.

[0003] However, this device has certain shortcomings. Existing tube sheet processing bending machines lack a limiting mechanism, which makes it easy to over-bend the tube sheet, affecting its subsequent use. At the same time, when bending the tube sheet, excessive pressure from the bending mechanism can cause the tube sheet to be thinned due to excessive force at the bending point, affecting its strength. Utility Model Content

[0004] The purpose of this utility model is to provide a tube sheet processing bending machine with a limiting mechanism, which solves the problem that the lack of a limiting mechanism in the tube sheet processing bending machine leads to excessive bending of the tube sheet, affecting the subsequent use of the tube sheet. At the same time, when the device bends the tube sheet, excessive extrusion by the bending mechanism will cause the tube sheet to be thinned due to excessive force at the bending point, affecting the strength of the tube sheet.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a tube sheet processing bending machine with a limiting mechanism, comprising a base, a bracket fixedly connected to the upper end of the base, a cylinder fixedly installed in the middle of the upper end of the bracket, the cylinder rod of the cylinder passing through the bracket and slidably connected to the bracket, a bending mechanism provided on the cylinder rod of the cylinder, two mutually hinged limiting plates hinged to the upper end of the base, baffles fixedly connected to both the front and rear ends of the limiting plates, and an adjustment mechanism provided on the base.

[0006] Preferably, the bending mechanism includes a slide cylinder, which is slidably connected to the cylinder rod of the cylinder. A hanging plate is fixedly connected to the lower end of the slide cylinder, and a spring is installed inside the slide cylinder. A pressure strip is fixedly connected to the lower end of the hanging plate. The spring acts on the hanging plate, so that when the cylinder operates, the spring elastically presses the hanging plate downwards, thereby preventing excessive cylinder elongation that could cause the tube sheet to be thinned and deformed at the bend after bending to a specified angle.

[0007] Preferably, a sliding pin is fixedly connected to the surface of the cylinder rod, and the sliding pin and the slide cylinder are slidably connected. By providing the sliding pin, relative rotation between the cylinder rod and the slide cylinder is prevented.

[0008] Preferably, one end of the spring is fixedly connected to the cylinder rod of the cylinder, and the other end of the spring is fixedly connected to the hanging plate. By setting the spring, the hanging plate is elastically pressed down.

[0009] Preferably, the adjustment mechanism includes a motor. The motor is fixedly installed at the right end of the base. The motor's shaft passes through the base and is rotatably connected to it. A bidirectional screw is fixedly connected to the end of the motor's shaft. The bidirectional screw is rotatably connected to the base. A sliding plate is threadedly connected to the outer side of the bidirectional screw. A top plate is fixedly connected to the upper end of the sliding plate, and the top plate contacts a limiting plate. By driving the bidirectional screw to rotate and the sliding plate to perform threaded movement, the top plate moves, causing the limiting plate to change angle. This allows the device to limit the maximum bending angle of the tube sheet, ensuring that excessive bending does not occur during the tube sheet bending process.

[0010] Preferably, the base has an internal groove that is slidably connected to the slide plate. The groove guides the movement of the slide plate.

[0011] Preferably, a slider is fixedly connected to the lower end of the top plate, and the slider is fixedly connected to the base. The slider provides auxiliary support to the top plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model uses a spring acting on the hanging plate so that when the cylinder works, the spring elastically presses the hanging plate down, thereby preventing the cylinder from elongating too much after the tube plate is bent to a specified angle, which would cause the tube plate to be thinned and deformed at the bend.

[0014] 2. This utility model uses a motor to drive a bidirectional screw to rotate and a sliding plate to make a threaded motion, which in turn causes the top plate to move and the angle of the limiting plate to change. This allows the device to limit the maximum bending angle of the tube sheet and ensure that the tube sheet will not be bent excessively during the bending process. Attached Figure Description

[0015] Figure 1This is a perspective view of the overall structure of this utility model;

[0016] Figure 2 This utility model Figure 1 A bottom view;

[0017] Figure 3 This utility model Figure 1 A cross-sectional view of the sliding cylinder;

[0018] Figure 4 This utility model Figure 1 A three-dimensional view of the local structure.

[0019] In the diagram: 1. Base; 2. Bracket; 3. Cylinder; 4. Bending mechanism; 5. Limiting plate; 6. Baffle; 7. Adjustment mechanism; 41. Slide cylinder; 42. Sliding pin; 43. Hanging plate; 44. Spring; 45. Pressure strip; 71. Motor; 72. Double-acting screw; 73. Slide plate; 74. Slide groove; 75. Top plate; 76. Slider. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-2 A tube sheet processing bending machine with a limiting mechanism includes a base 1, a bracket 2 fixedly connected to the upper end of the base 1, a cylinder 3 fixedly installed in the middle of the upper end of the bracket 2, the cylinder rod of the cylinder 3 passing through the bracket 2 and slidably connected to the bracket 2, a bending mechanism 4 provided on the cylinder rod of the cylinder 3, two mutually hinged limiting plates 5 hinged to the upper end of the base 1, baffles 6 fixedly connected to both the front and rear ends of the limiting plates 5, and an adjustment mechanism 7 provided on the base 1.

[0022] Please see Figures 1-4The bending mechanism 4 includes a slide cylinder 41, which is slidably connected to the cylinder rod of the cylinder 3. A sliding pin 42 is fixedly connected to the surface of the cylinder rod of the cylinder 3. The sliding pin 42 is slidably connected to the slide cylinder 41. By setting the sliding pin 42, relative rotation between the cylinder rod and the slide cylinder 41 is avoided. A hanging plate 43 is fixedly connected to the lower end of the slide cylinder 41. A spring 44 is set inside the slide cylinder 41. One end of the spring 44 is fixedly connected to the cylinder rod of the cylinder 3, and the other end of the spring 44 is fixedly connected to the hanging plate 43. By setting the spring 44, the hanging plate 43 is elastically pressed down. A pressure strip 45 is fixedly connected to the lower end of the hanging plate 43. The spring 44 acts on the hanging plate 43, so that when the cylinder 3 works, the spring 44 elastically presses down the hanging plate 43, thereby preventing the cylinder 3 from elongating too much after bending the tube sheet to a specified angle, which would cause the tube sheet to be thinned and deformed at the bend.

[0023] Please see Figure 1 , Figure 4 The adjustment mechanism 7 includes a motor 71. The motor 71 is fixedly installed at the right end of the base 1. The rotating shaft of the motor 71 passes through the base 1 and is rotatably connected to the base 1. A bidirectional screw 72 is fixedly connected to the end of the rotating shaft of the motor 71. The bidirectional screw 72 is rotatably connected to the base 1. A sliding plate 73 is threadedly connected to the outside of the bidirectional screw 72. A sliding groove 74 is provided inside the base 1. The sliding groove 74 and the sliding plate 73 are slidably connected. The sliding groove 74 guides the movement of the sliding plate 73. A top plate 75 is fixedly connected to the upper end of the sliding plate 73. The top plate 75 contacts the limiting plate 5. A slider 76 is fixedly connected to the lower end of the top plate 75. The slider 76 is fixedly connected to the base 1. The slider 76 provides auxiliary support for the top plate 75. The motor 71 drives the bidirectional screw 72 to rotate and the sliding plate 73 to make threaded movements, thereby causing the top plate 75 to move and causing the limiting plate 5 to change angle. This allows the device to limit the maximum bending angle of the tube sheet and ensure that the tube sheet will not bend excessively during the bending process.

[0024] The specific implementation process of this utility model is as follows: In use, according to the bending angle adjustment device of the tube sheet, the motor 71 is started. The motor 71 drives the bidirectional screw 72 to rotate. The rotation of the bidirectional screw 72 and the sliding plate 73 make threaded movements, thereby causing the sliding plate 73 to slide in the slide groove 74. The sliding plate 73 drives the top plate 75 to move. The movement of the top plate 75 causes the angle of the limiting plate 5 to change, so that the device can limit the maximum bending angle of the tube sheet, ensuring that there is no excessive bending during the tube sheet bending process. Then the tube or plate is... Placed on two limit plates 5, the cylinder 3 is activated. The cylinder 3 drives the cylinder rod to extend, which in turn causes the spring 44 to move downward. The spring 44 then moves the hanging plate 43, which in turn moves the pressure strip 45, causing the pressure strip 45 to contact the tube sheet and bend it. The spring 44 acts on the hanging plate 43, so that when the cylinder 3 is working, the spring 44 elastically presses the hanging plate 43 downward, thus preventing the tube sheet from being thinned and deformed at the bend after it is bent to the specified angle due to excessive extension of the cylinder 3.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tube sheet processing bending machine with a limiting mechanism, comprising a base (1), characterized in that: The upper end of the base (1) is fixedly connected to a bracket (2), and a cylinder (3) is fixedly installed in the middle of the upper end of the bracket (2). The cylinder rod of the cylinder (3) passes through the bracket (2) and is slidably connected to the bracket (2). A bending mechanism (4) is provided on the cylinder rod of the cylinder (3). Two mutually hinged limiting plates (5) are hinged to the upper end of the base (1). Baffles (6) are fixedly connected to both the front and rear ends of the limiting plates (5). An adjustment mechanism (7) is provided on the base (1).

2. The tube sheet processing bending machine with a limiting mechanism according to claim 1, characterized in that: The bending mechanism (4) includes a slide cylinder (41), which is slidably connected to the cylinder rod of the cylinder (3). A hanging plate (43) is fixedly connected to the lower end of the slide cylinder (41), and a spring (44) is provided inside the slide cylinder (41). A pressure strip (45) is fixedly connected to the lower end of the hanging plate (43).

3. A tube sheet processing bending machine with a limiting mechanism according to claim 2, characterized in that: The cylinder rod surface of the cylinder (3) is fixedly connected to a sliding pin (42), and the sliding pin (42) and the slide cylinder (41) are slidably connected.

4. A tube sheet processing bending machine with a limiting mechanism according to claim 2, characterized in that: One end of the spring (44) is fixedly connected to the cylinder rod of the cylinder (3), and the other end of the spring (44) is fixedly connected to the hanging plate (43).

5. A tube sheet processing bending machine with a limiting mechanism according to claim 1, characterized in that: The adjustment mechanism (7) includes a motor (71). The motor (71) is fixedly installed at the right end of the base (1). The rotating shaft of the motor (71) passes through the base (1) and is rotatably connected to the base (1). A bidirectional screw (72) is fixedly connected to the end of the rotating shaft of the motor (71). The bidirectional screw (72) is rotatably connected to the base (1). A sliding plate (73) is threadedly connected to the outside of the bidirectional screw (72). A top plate (75) is fixedly connected to the upper end of the sliding plate (73). The top plate (75) is in contact with the limiting plate (5).

6. A tube sheet processing bending machine with a limiting mechanism according to claim 5, characterized in that: The base (1) has a groove (74) inside, and the groove (74) and the slide plate (73) are slidably connected.

7. A tube sheet processing bending machine with a limiting mechanism according to claim 5, characterized in that: A slider (76) is fixedly connected to the lower end of the top plate (75), and the slider (76) is fixedly connected to the base (1).

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