Power cabinet cable rack flanging tool

Abstract

The utility model relates to a flanging tool for a cable rack of an electric power cabinet, and aims to solve the problems of low positioning precision, poor operation safety, insufficient efficiency and the like of a traditional device. The tool comprises a workbench, a linear guide rail, a sliding block and a hydraulic driving system, and a first rectangular block achieves the segmented bending function through linear movement of the sliding block. A V-shaped groove and a circumferential positioning pin are arranged at the top of the second rectangular block and are matched with the V-shaped strip of the second rectangular block to finish primary flanging; the reset spring and the adjustable positioning pin ensure that the fixing positions of the plates are consistent. A hydraulic cylinder drives a second rectangular block to move up and down, a pressure sensor in a dovetail groove monitors pressing force in real time, automatic lifting is achieved after the pressing force reaches a threshold value, and overload is avoided. The ranging grating monitors an operation area, and the machine is automatically stopped when a person enters by mistake to guarantee safety. And the guide rod and the rubber block respectively improve the matching precision and the sliding stability. Efficient segmented bending is achieved through modular design, positioning is accurate, operation is safe, production efficiency and product consistency are improved, and maintenance cost and safety risks are reduced.

Description

Technical Field

[0001] This utility model relates to the field of flanging device technology, and in particular to a flanging fixture for cable racks in power cabinets. Background Technology

[0002] With the expansion of power systems and the increasing demand for intelligent systems, the manufacturing precision of the cable trays inside power distribution cabinets, as the core carriers of power transmission and distribution equipment, directly affects the safety and reliability of the equipment. Cable trays are typically made of sheet metal and require a flanging process to form a U-shaped structure to enhance load-bearing capacity and resistance to deformation. However, traditional flanging fixtures face numerous challenges in practical applications and urgently require technological improvements.

[0003] Current flanging processes mostly rely on general-purpose bending machines or manual tooling, which complete a single bend through the cooperation of upper and lower dies. The main drawbacks of such devices are: firstly, the die angle is fixed, making it unable to adapt to different sheet thicknesses or flanging depths, requiring frequent die changes and resulting in low production efficiency; secondly, manual positioning depends on operator experience, easily leading to flanging dimension deviations due to sheet misalignment, affecting the assembly accuracy of cable trays; thirdly, traditional mechanical pressing lacks a pressure feedback mechanism, easily causing sheet deformation or equipment damage due to overpressure. Furthermore, manual operation poses safety hazards; improper operation during high-speed stamping can easily lead to workplace injuries.

[0004] Another type of improvement attempt to introduce automated control, using hydraulic cylinders to drive the pressure head to complete the bending. However, this approach still has shortcomings in practical applications: First, the contact surface design between the pressure head and the sheet metal is unreasonable, making it difficult to ensure the uniformity of the bending angle; second, the lack of a precise positioning system makes secondary adjustments after the sheet metal is fixed difficult, leading to positional shifts during multiple bends; third, the existing device lacks a safety protection mechanism, and if personnel accidentally enter a dangerous area during operation, the equipment cannot be stopped in time, posing a safety hazard. Furthermore, traditional tooling has high maintenance costs, and key components (such as guide rails and sensors) are easily contaminated by metal debris, affecting their service life.

[0005] To address the aforementioned problems, there is an urgent need for a power cabinet cable rack flanging fixture that combines high precision, high safety, and ease of operation. An ideal solution should meet the following requirements: first, it should achieve segmented bending, forming a precise U-shaped flanging structure through two pressing operations; second, it should be equipped with a multi-directional positioning system to ensure consistent plate fixing positions; third, it should integrate an intelligent detection module to monitor pressure and displacement in real time, avoiding overload risks; and fourth, it should have a modular structure for easy maintenance and functional expansion. Based on this, this utility model proposes an innovative fixture that effectively solves existing technical problems through the coordinated design of linear guides and hydraulic drive, combined with V-groove positioning and distance measuring grating safety protection. Utility Model Content

[0006] The purpose of this utility model is to provide a flanged tooling for cable racks in power cabinets to solve the problems existing in the prior art.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0008] A flanged cable tray fixture for power cabinets includes a workbench. A linear guide rail is fixedly mounted on the top of the workbench, and a slider is slidably mounted on the linear guide rail. A first rectangular block is fixedly mounted on the top of the slider. A bracket is fixedly mounted on the top of the workbench, and a hydraulic cylinder is fixedly mounted on the top of the bracket. A second rectangular block is fixedly mounted on the bottom of the hydraulic cylinder. The hydraulic cylinder drives the second rectangular block to move up and down. A V-groove is provided on the top of the first rectangular block. Multiple positioning holes are evenly arranged around the top of the first rectangular block. A return spring is fixedly mounted on the bottom of each positioning hole, and a positioning pin is slidably mounted on the top of each positioning hole. An extension positioning part is provided on the top of the positioning pin, located on the outer side of the top of the positioning hole. A V-shaped strip corresponding to the V-groove is provided on the bottom of the second rectangular block.

[0009] By adopting the above technical solution, the V-groove and V-strip work together to press from top to bottom, which can first fold one edge of the board that needs to be folded to a certain angle. The positioning pin can limit the position of the board to be folded on the first rectangular block from different directions, so that the size of each fold is consistent. Then the board can be placed at any position on the first rectangular block, so that the first rectangular block and the second rectangular block are misaligned. The top and bottom flat parts of the first rectangular block are used to press the edge folded to a certain angle, so that it forms a completely fitted U-shaped folded structure. The first rectangular block is set to be a structure that can move linearly, so that the device can process the folding in segments through two bends, making the device easier to use.

[0010] In a further embodiment, a plurality of ranging gratings are uniformly arranged around the bottom periphery of the second rectangular block.

[0011] By adopting the above technical solution, since the distance measured by the ranging grating will not be consistent and will not be a linear smooth transition when the hand is in the area at the bottom of the second rectangular block, the safety of the operator is ensured by setting the program so that the hydraulic cylinder does not work when the hand is in the space under the second rectangular block.

[0012] In a further embodiment, a dovetail groove is provided at the bottom of the second rectangular block, and the top end of the V-shaped strip is slidably inserted into the dovetail groove. Multiple pressure sensors are provided at the inner top of the dovetail groove, and the pressure sensors are used to detect the pressure between the inner top of the dovetail groove and the top of the V-shaped strip.

[0013] By adopting the above technical solution, when the pressure sensor detects that the pressure has reached the set value, it notifies the hydraulic cylinder to reverse, thereby realizing the automatic lifting of the second rectangular block.

[0014] In a further embodiment, the first rectangular block has two receiving grooves at the top left corners, and guide rods are detachably inserted into the receiving grooves. The bottom of the second rectangular block has guide holes that pass through vertically, corresponding to the two guide rods.

[0015] By adopting the above technical solution, the guide rod and guide rod hole are used when the V-groove and V-strip of this device cooperate to perform the first bending and flanging of the plate, so as to ensure the cooperation accuracy of the V-groove and V-strip.

[0016] In a further embodiment, a rubber block is provided at the bottom of the slider, and the bottom of the rubber block is in contact with the top of the worktable.

[0017] By adopting the above technical solution, the rubber block is used to increase the damping of the slider's sliding motion, preventing the slider from sliding too easily.

[0018] In a further embodiment, an indicator grating is provided on one side of the top of the second rectangular block, the indicator grating being used to indicate the positional relationship between the first rectangular block and the second rectangular block.

[0019] In summary, this utility model has the following beneficial effects:

[0020] 1. By using V-grooves and V-strips in conjunction, and pressing from above and below, one edge of the board to be folded can be folded to a certain angle. Positioning pins can limit the position of the board to be folded on the first rectangular block from different directions, ensuring that the size of each fold is consistent. Then, the board can be placed at any position on the first rectangular block, causing the first and second rectangular blocks to be misaligned. The top and bottom flat parts of the first rectangular block are used to press the edge folded to a certain angle, forming a perfectly fitted U-shaped folded structure. The first rectangular block is designed to be linearly movable, allowing the device to segment the folding process through two bends, making the device easier to use. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0022] In the diagram, 1 is the worktable; 2 is the linear guide; 3 is the slider; 4 is the first rectangular block; 5 is the bracket; 6 is the hydraulic cylinder; 7 is the second rectangular block; and 8 is the locating pin. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings.

[0024] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to the attached figures. Figure 1 In this specification, the terms "bottom surface" and "top surface," "inner" and "outer" refer to the direction toward or away from the geometry of a specific component. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this specification, "a plurality of" means two or more, unless otherwise explicitly and specifically defined by the direction of the center.

[0025] Example 1: As Figure 1 As shown, a flanged cable tray fixture for an electrical cabinet is provided. It includes a workbench 1, a linear guide rail 2 fixedly mounted on the top of the workbench 1, a slider 3 slidably mounted on the linear guide rail 2, a first rectangular block 4 fixedly mounted on the top of the slider 3, a bracket 5 fixedly mounted on the top of the workbench 1, a hydraulic cylinder 6 fixedly mounted on the top of the bracket 5, and a second rectangular block 7 fixedly mounted on the bottom of the hydraulic cylinder 6. The hydraulic cylinder 6 drives the second rectangular block 7 to move up and down. The top of the first rectangular block 4 has a V-groove, and multiple positioning holes are evenly distributed around the top of the first rectangular block 4. A return spring is fixedly mounted inside the bottom of each positioning hole, and a positioning pin 8 is slidably mounted inside the top of each positioning hole. The top of the positioning pin 8 has an extended positioning part located outside the top of the positioning hole. The bottom of the second rectangular block 7 has a corresponding V-groove. The first rectangular block 4 has a V-shaped bar; multiple ranging gratings are evenly arranged around the bottom periphery of the second rectangular block 7; a dovetail groove is opened at the bottom of the second rectangular block 7, and the top of the V-shaped bar is slidably inserted into the dovetail groove. Multiple pressure sensors are set in the inner top of the dovetail groove, and the pressure sensors are used to detect the pressure between the inner top of the dovetail groove and the top of the V-shaped bar; two receiving grooves are set at the top left corners of the first rectangular block 4, and guide rods are detachably inserted in the receiving grooves; the bottom of the second rectangular block 7 is set with guide holes that pass through the top and bottom corresponding to the two guide rods; a rubber block is set at the bottom of the slider 3, and the bottom of the rubber block is in contact with the top of the worktable 1; an indicator grating is set on one side of the top of the second rectangular block 7, and the indicator grating is used to indicate the positional relationship between the first rectangular block and the second rectangular block 7.

[0026] Specific implementation process: Push slider 3 to slide to the bottom of the second rectangular block. Adjust the position of the top positioning pin 8 of the first rectangular block 4 according to the thickness of the plate and the flanging requirements. If segmented bending is required, insert the guide rod into the receiving groove at the top of the first rectangular block 4 to ensure that the guide hole at the bottom of the second rectangular block 7 is aligned with the guide rod.

[0027] Then, the sheet metal is positioned and initially bent. Sheet metal is placed flat in the V-groove at the top of the first rectangular block 4, ensuring the edge of the sheet metal is aligned with the center of the V-groove. Positioning pins distributed circumferentially restrict the sheet metal's position to prevent offset. The hydraulic cylinder 6 is activated, driving the second rectangular block 7 to slowly press down. At this time, the V-shaped strip at the bottom of the second rectangular block engages with the V-groove of the first rectangular block, performing the initial bend on the sheet metal edge. Pressure monitoring: A pressure sensor monitors the pressure value in the dovetail groove in real time. When a preset threshold is reached, the hydraulic cylinder automatically stops pressing down and retracts to prevent overload and deformation of the sheet metal. Then, the position of the first slider is moved to prepare for the second pressing and U-shaped forming. Sliding slider: After the initial bend, slider 3 is pushed horizontally along the linear guide rail 2, causing the planar portions of the first rectangular block 4 and the second rectangular block 7 to be misaligned and aligned. The hydraulic cylinder is activated again, and the second rectangular block 7 presses down into the planar area of ​​the first rectangular block 4, performing a second pressing on the initially bent sheet metal to form a tightly fitted U-shaped flange structure. The guide rod and guide hole ensure precise positioning during the pressing process.

[0028] Through the above steps, this tooling can achieve efficient and precise cable rack flanging processing, while taking into account operational safety and equipment reliability, and is suitable for the mass production needs in power cabinet manufacturing.

[0029] In the embodiments disclosed in this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.

[0030] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A flanged fixture for a power cabinet cable tray, characterized in that: The system includes a workbench (1), a linear guide rail (2) fixedly mounted on the top of the workbench (1), a slider (3) slidably mounted on the linear guide rail (2), a first rectangular block (4) fixedly mounted on the top of the slider (3), a bracket (5) fixedly mounted on the top of the workbench (1), a hydraulic cylinder (6) fixedly mounted on the top of the bracket (5), a second rectangular block (7) fixedly mounted on the bottom of the hydraulic cylinder (6), the hydraulic cylinder (6) being used to drive the second rectangular block (7) to move up and down, a V-groove is provided on the top of the first rectangular block (4), a plurality of positioning holes are evenly provided on the top circumference of the first rectangular block (4), a return spring is fixedly mounted on the bottom of each positioning hole, a positioning pin (8) is slidably mounted on the top of each positioning hole, an extended positioning part is provided on the top outer side of the positioning hole, and a V-shaped strip corresponding to the V-groove is provided on the bottom of the second rectangular block (7).

2. The cable tray flange tooling for power cabinets according to claim 1, characterized in that: The bottom periphery of the second rectangular block (7) is uniformly provided with multiple ranging gratings.

3. The cable tray flange tooling for power cabinets according to claim 1, characterized in that: The bottom of the second rectangular block (7) is provided with a dovetail groove, and the top of the V-shaped strip is slidably inserted into the dovetail groove. Multiple pressure sensors are provided on the inner top of the dovetail groove, and the pressure sensors are used to detect the pressure between the inner top of the dovetail groove and the top of the V-shaped strip.

4. The cable tray flange tooling for power cabinets according to claim 1, characterized in that: The first rectangular block (4) has two receiving grooves on the top left corners, and guide rods are detachably inserted into the receiving grooves. The bottom of the second rectangular block (7) has guide holes that pass through the top and bottom corresponding to the two guide rods.

5. The cable tray flange tooling for power cabinets according to claim 1, characterized in that: The bottom of the slider (3) is provided with a rubber block, and the bottom of the rubber block is in contact with the top of the workbench (1).

6. The cable tray flange tooling for power cabinets according to claim 1, characterized in that: An indicator grating is provided on one side of the top of the second rectangular block (7), and the indicator grating is used to indicate the positional relationship between the first rectangular block and the second rectangular block (7).

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