Single-face tensioning structure tool

Abstract

The utility model relates to a single-face tensioning structure tool. Comprising a substrate structure provided with a plurality of operation through holes; ratchet wheel tensioning devices are detachably connected to the two ends of the base plate structure; pressing rod grooves are formed in the two ends of the base plate structure, tensioning installation structures are installed at the two ends of the base plate structure, and tensioning pressing rod structures capable of being inserted into the corresponding pressing rod grooves are movably connected to the tensioning installation structures; each tensioning installation structure is provided with a jacking piece. A plurality of pressing clamping pieces are mounted on the substrate structure; the ratchet wheel tensioning device comprises a fixed installation frame, a ratchet wheel shaft rod is rotationally connected to the fixed installation frame, multiple sets of tensioning ratchet wheels are installed on the ratchet wheel shaft rod, and the tip end of each tensioning ratchet wheel can be embedded into meshes of the silk screen. Each tensioning ratchet wheel is provided with a plurality of through holes. The tensioning device further comprises a stop supporting rod which can be arranged in the through holes of the tensioning ratchet wheels in a penetrating mode. And the tooth parts of the tensioning ratchet wheels in the two groups of ratchet wheel tensioning devices face opposite directions.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical processing technology, and in particular relates to a single-sided tensioning structure tooling. Background Technology

[0002] The chassis are widely used in industries such as instruments, meters, electronics, communications, automation, precision machinery, and industrial control. Among them, military electronic chassis are widely used in instruments, meters, electronics, communications, automation, and precision machinery commonly used by the military.

[0003] There is a type as shown in the attached diagram of the instruction manual. Figure 8 The cover assembly shown is installed on the chassis to provide protection and ventilation. Structurally, the cover assembly includes two cover frames arranged side by side. The cover frames are made of thin metal sheets, and a metal wire mesh is placed between the two cover frames. The two cover frames and the wire mesh are connected by welding to form a sandwich structure.

[0004] Due to the high precision requirements of the cover plate assembly, manual welding is generally used. However, under relatively strict process requirements, the welding is quite difficult, especially for welding thin metal sheets and metal wire mesh. The welding stress can easily cause the metal wire mesh to bend and deform, resulting in unevenness and poor uniformity in the finished cover plate assembly. Therefore, it is necessary to tension and straighten the metal wire mesh before welding and to stably clamp the metal wire mesh and the two cover plate frames to prevent wrinkles and bending of the metal wire mesh from affecting the quality of the finished cover plate assembly. Therefore, it is urgent to design a single-sided tensioning structure tooling to solve the above problems. Utility Model Content

[0005] This utility model provides a single-sided tensioning structure tooling with a reasonable structural design to solve the technical problems existing in the prior art. This utility model can tension and fix the wire mesh constituting the cover plate assembly, and clamp and fix the two cover plate frames and wire mesh in a sandwich structure, avoiding bending and deformation of the wire mesh during subsequent welding, improving the welding effect and reducing the scrap rate of the finished cover plate assembly.

[0006] The technical solution adopted by this utility model to solve the technical problems existing in the prior art is as follows: A single-sided tensioning structure tooling includes a base plate structure with several operating through holes for laying a cover plate frame and wire mesh flat; ratchet tensioning devices that are effectively combined with the wire mesh are detachably connected to both ends of the base plate structure; pressure bar grooves are opened at both ends of the base plate structure and tensioning mounting structures corresponding to the pressure bar grooves are installed; tensioning pressure bar structures that can be inserted into the corresponding pressure bar grooves are movably connected to each tensioning mounting structure for pressing and tensioning the wire mesh; a top clamping member is installed on each tensioning mounting structure for pressing down the corresponding tensioning pressure bar structure and locking its position; on the base plate... The structure includes several pressing and clamping components located between two sets of tensioning mounting structures for pressing the cover plate assembly onto the base plate structure. The ratchet tensioning device includes a fixed mounting frame detachably connected to the base plate structure, a transversely arranged ratchet shaft rotatably connected to the fixed mounting frame, and multiple sets of tensioning ratchets distributed axially on the ratchet shaft, the tips of each tensioning ratchet being able to be embedded into the mesh openings of the wire mesh. Each tensioning ratchet has several through holes evenly distributed circumferentially, and also includes a stop support rod detachably connected to the fixed mounting frame and capable of passing through the corresponding through holes of each tensioning ratchet. The teeth of the tensioning ratchets in the two sets of ratchet tensioning devices face opposite directions.

[0007] The advantages and positive effects of this utility model are as follows: This utility model provides a single-sided tensioning structure tooling. By setting a base plate structure, it is convenient to lay the cover plate frame and wire mesh layer by layer. Through the ratchet tensioning device, the wire mesh can be initially tensioned. That is, after the tip of the tensioning ratchet is inserted into the mesh hole of the wire mesh and rotates, the wire mesh can be pulled outward. The position of the tensioning ratchet can be locked by the set stop support rod to prevent the tensioning ratchet from rotating. The pressure bar groove opened on the base plate structure, together with the embeddable tensioning pressure bar structure above it, can further pull the wire mesh. With the help of the top clamping member, the position of the tensioning pressure bar structure is locked to achieve further tensioning and straightening of the wire mesh. Through the set several pressing clamping members, the two cover plate frames and wire mesh distributed in a sandwich structure can be clamped and fixed, avoiding bending and deformation of the wire mesh during subsequent welding process, and reducing the scrap rate of the finished cover plate assembly. The several operating through holes opened on the base plate structure can facilitate the welding operation of the cover plate frame and wire mesh by the workers. This invention can tension and fix the wire mesh that makes up the cover plate assembly, and clamp and fix the two cover plate frames and the wire mesh that are sandwich structured, so as to avoid the wire mesh bending and deformation during the subsequent welding process and reduce the scrap rate of the finished cover plate assembly.

[0008] Preferably, the tensioning bar structure includes a T-shaped tie rod that passes through a through hole in the tensioning installation structure, and a horizontally arranged tensioning bar is installed at the lower end of the T-shaped tie rod. The tensioning bar can be embedded in the corresponding bar groove.

[0009] Preferably, the tensioning mounting structure includes a mounting plate body that is detachably connected to the substrate structure, a through groove that connects its two opposite sides and allows the end of the wire mesh to pass through, and a pressure bar receiving groove that accommodates the tensioning pressure bar structure and is connected to the through groove.

[0010] Preferably, the tightening member is a plurality of tightening bolts that are screwed into the tensioning installation structure and contact the top of the corresponding tensioning pressure bar.

[0011] Preferably, the substrate structure further includes a substrate body, two sets of pressure bar grooves are located at both ends of the substrate body, a frame groove matching the cover plate frame is provided on the top surface of the substrate body, and several operating through holes are provided in the frame groove.

[0012] Preferably, the mounting bracket is fixedly connected to the mounting plate body, and the mounting plate body is detachably connected to the base plate structure by bolts.

[0013] Preferably, each tensioning ratchet is connected to its corresponding ratchet shaft via a locking nut, and the axial projection contours of the several tensioning ratchets mounted on each ratchet shaft completely overlap.

[0014] Preferably, the longitudinal section of each pressure bar groove is a funnel structure that is wider at the top and narrower at the bottom.

[0015] Preferably, each pressing and clamping component is a horizontal clamp. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0017] Figure 2 This is a three-dimensional structural diagram of the main body of this utility model, viewed from below;

[0018] Figure 3 This is a three-dimensional structural diagram of the substrate structure in this utility model;

[0019] Figure 4 yes Figure 1 A schematic diagram of the AA cross-sectional structure in the diagram;

[0020] Figure 5 yes Figure 1 Schematic diagram of the BB cross-sectional structure in the middle;

[0021] Figure 6 yes Figure 4 Enlarged diagram of region C in the image;

[0022] Figure 7 yes Figure 4 Enlarged diagram of region D in the image;

[0023] Figure 8 This is a three-dimensional structural diagram of the cover plate assembly.

[0024] In the diagram: 1. Ratchet tensioning device; 1-1. Ratchet shaft; 1-2. Stop support rod; 1-3. Tensioning ratchet; 1-4. Fixed mounting bracket; 2. Tensioning mounting structure; 2-1. Pressure bar receiving groove; 2-2. Through groove; 2-3. Mounting plate body; 3. Base plate structure; 3-1. Base plate body; 3-2. Pressure bar groove; 3-3. Frame groove; 3-4. Operating through hole; 4. Pressing clamp; 5. Tightening component; 6. Tensioning pressure bar structure; 6-1. Tensioning pressure bar component; 6-2. T-shaped tie rod; 7. Cover plate assembly; 7-1. Cover plate frame; 7-2. Wire mesh. Detailed Implementation

[0025] To further understand the invention content, features, and effects of this utility model, the following embodiments are provided in detail:

[0026] Please see Figure 1 The single-sided tensioning structure tooling of this utility model includes a base plate structure 3, see further details. Figure 3 and Figure 6 Structurally, the substrate structure 3 includes a substrate body 3-1 for laying the cover plate frame 7-1 and the wire mesh 7-2 flat. A frame groove 3-3 matching the cover plate frame 7-1 is formed on the top surface of the substrate body 3-1. Several operating through holes 3-4 are formed on the frame groove 3-3 to facilitate welding operations on the cover plate frame 7-1 and the wire mesh 7-2. See further details. Figure 7 Pressure bar grooves 3-2 are provided at both ends of the substrate body 3-1. The two sets of pressure bar grooves 3-2 are arranged side by side and extend along the width direction of the substrate body 3-1. Furthermore, the longitudinal section of each pressure bar groove 3-2 is a funnel structure that is wider at the top and narrower at the bottom.

[0027] like Figure 1 , Figure 4 and Figure 5 As shown, a ratchet tensioning device 1 and a tensioning mounting structure 2 are detachably connected to both ends of the substrate structure 3. The ratchet tensioning device 1 can be effectively combined with the wire mesh 7-2. In this embodiment, the ratchet tensioning device 1 is fixedly connected to the corresponding tensioning mounting structure 2, and the tensioning mounting structure 2 is detachably connected to the end of the substrate structure 3 by bolts. Therefore, in actual operation, only the assembly and disassembly of the substrate structure 3 and the tensioning mounting structure 2 are required to achieve quick assembly and disassembly of the ratchet tensioning device 1 and the tensioning mounting structure 2.

[0028] See further Figure 2The aforementioned ratchet tensioning device 1 includes a fixed mounting bracket 1-4 fixedly connected to the tensioning mounting structure 2. A transversely arranged ratchet shaft 1-1 is rotatably connected to the fixed mounting bracket 1-4, and the axial direction of the ratchet shaft 1-1 is consistent with the length direction of the pressure bar groove 3-2. The fixed mounting bracket 1-4 includes an L-shaped plate base, on which two sets of outwardly extending and parallel ear plates are fixedly connected. The ratchet shaft 1-1 passes through these two sets of ear plates and is rotatable. Multiple sets of tensioning ratchet wheels 1-3 distributed along its axial direction are mounted on the ratchet shaft 1-1. The tip of each tensioning ratchet wheel 1-3 can be embedded into the mesh of the wire mesh 7-2, and each tensioning ratchet wheel 1-3 is made of high-hardness alloy material.

[0029] In this embodiment, at least five tensioning ratchet wheels 1-3 are mounted on the same ratchet shaft 1-1. Each tensioning ratchet wheel 1-3 is connected to its corresponding ratchet shaft 1-1 via a locking nut, thereby ensuring that each tensioning ratchet wheel 1-3 can rotate synchronously with its corresponding ratchet shaft 1-1, and the axial projection contours of the tensioning ratchet wheels 1-3 mounted on each ratchet shaft 1-1 completely overlap. It is worth noting that the teeth of the tensioning ratchet wheels 1-3 in the two sets of ratchet tensioning devices 1 in this embodiment face opposite directions. Furthermore, the teeth at the bottom of each tensioning ratchet wheel 1-3 face outwards.

[0030] like Figure 2 As shown, each tension ratchet 1-3 has several through holes evenly distributed circumferentially, and also includes a stop support rod 1-2 that is detachably connected to the fixed mounting bracket 1-4 and can be inserted into the corresponding through hole of each tension ratchet 1-3; furthermore, the stop support rod 1-2 is inserted into the through hole opened on the fixed mounting bracket 1-4, and the axial direction of the stop support rod 1-2 is consistent with the axial direction of the ratchet shaft 1-1.

[0031] In actual operation, after the ratchet tensioning device 1 and the tensioning mounting structure 2 are installed at the end of the base plate structure 3, the ratchet teeth at the bottom of each of the above-mentioned tensioning ratchet 1-3 can be inserted into the mesh of the wire mesh 7-2.

[0032] See further Figure 2 The aforementioned tensioning mounting structure 2 includes a mounting plate body 2-3 that is detachably connected to the base plate structure 3, wherein the fixed mounting bracket 1-4 is fixedly connected to the mounting plate body 2-3, and the mounting plate body 2-3 is detachably connected to the base plate structure 3 by bolts.

[0033] A through groove 2-2 is provided on the mounting plate body 2-3, connecting its two opposite sides and allowing the end of the wire mesh 7-2 to pass through. A pressure rod receiving groove 2-1 is provided on the mounting plate body 2-3, which communicates with the through groove 2-2. Figure 7As shown, the pressure bar receiving groove 2-1 is arranged vertically and vertically corresponding to the pressure bar groove 3-2 mentioned above.

[0034] like Figure 1 As shown, each tensioning installation structure 2 is movably connected to a tensioning pressure rod structure 6 that can be inserted into the corresponding pressure rod groove 3-2 for pressing the tensioning wire mesh 7-2; each tensioning installation structure 2 is equipped with a top clamping member 5 for pressing down the corresponding tensioning pressure rod structure 6 and locking its position.

[0035] See further Figure 2 The aforementioned tensioning rod structure 6 includes a T-shaped tie rod 6-2 passing through a through hole in the tensioning mounting structure 2. A horizontally arranged tensioning rod 6-1 is installed at the lower end of the T-shaped tie rod 6-2. The tensioning rod 6-1 passes through a corresponding rod receiving groove 2-1 and is clearance-fitted with the rod receiving groove 2-1. The tensioning rod 6-1 can be embedded in a corresponding rod groove 3-2. In this embodiment, the T-shaped tie rod 6-2 and the tensioning rod 6-1 are screwed together at the middle.

[0036] like Figure 1 and Figure 2 As shown, in this embodiment, the tightening member 5 consists of several tightening bolts that are screwed together with the mounting plate body 2-3 in the tensioning installation structure 2 and contact the top of the corresponding tensioning pressure rod 6-1. Four sets of these tightening bolts are provided, with each set distributed in pairs on both sides of the T-shaped tie rod 6-2. In actual operation, screwing the tightening member 5 downwards presses down the corresponding tensioning pressure rod 6-1, causing the tensioning pressure rod 6-1 to press down on the wire mesh 7-2 while simultaneously embedding into the corresponding pressure rod groove 3-2, thereby achieving the purpose of tensioning the wire mesh 7-2.

[0037] like Figure 1 and Figure 4 As shown, a plurality of pressing clamps 4 are installed on the substrate structure 3 between the two sets of tensioning mounting structures 2, for pressing the cover plate assembly 7 onto the substrate structure 3; in this embodiment, each pressing clamp 4 is a horizontal clamp for pressing the edge of the cover plate frame 7-1.

[0038] Operating principle:

[0039] In the actual working process, firstly, remove the two sets of ratchet tensioning devices 1 and the two sets of tensioning mounting structures 2 from the base plate structure 3. Then, place the cover plate frame 7-1 in the frame groove 3-3 opened on the base plate structure 3, and lay a layer of wire mesh 7-2 on the cover plate frame 7-1, ensuring that both ends of the wire mesh 7-2 extend to the outer side of the end of the base plate structure 3 for a certain length. Then, install the removed ratchet tensioning device 1 and tensioning mounting structure 2 on the corresponding positions on the base plate structure 3, so that the tensioning ratchet 1-3 in the ratchet tensioning device 1 is inserted into the mesh of the wire mesh 7-2 at the bottom tip. In order to further improve the gripping force of the ratchet tensioning device 1 on the wire mesh 7-2, the mesh of the wire mesh 7-2 can be hooked onto the corresponding tensioning ratchet 1-3. Then, pull out the stop support rod 1-2 in the ratchet tensioning device 1.

[0040] Rotate the ratchet shaft 1-1 in the ratchet tensioning device 1 to drive the several tensioning ratchet wheels 1-3 mounted on it to rotate synchronously. This causes the tensioning ratchet wheels 1-3 to grab the wire mesh 7-2 and pull it outward. Then, insert the stop support rod 1-2 to lock and prevent the return of the tensioning ratchet wheels 1-3, thereby achieving the initial tensioning operation of the wire mesh 7-2. In actual operation, two sets of ratchet tensioning devices 1 can be operated simultaneously to pull both ends of the wire mesh 7-2 synchronously. Alternatively, the ratchet shaft 1-1 in one set of ratchet tensioning devices 1 can be rotated first to pull one end of the wire mesh 7-2 and lock and prevent return. Then, the other set of ratchet tensioning devices 1 can be operated repeatedly to pull and lock and prevent return of the other end of the wire mesh 7-2, ultimately achieving the initial tensioning operation of the wire mesh 7-2.

[0041] After the initial tensioning of the wire mesh 7-2 is completed, the top clamping member 5 is screwed down and the tensioning rod structure 6 is pressed down, so that the tensioning rod structure 6 is embedded into part of the pressure rod groove 3-2, thereby further pulling the wire mesh 7-2 to achieve further tensioning of the wire mesh 7-2, so that the wire mesh 7-2 is in a taut state.

[0042] After further tensioning of the wire mesh 7-2, another cover frame 7-1 is laid on the wire mesh 7-2, so that the upper and lower cover frames 7-1 are aligned. Finally, several pressing and clamping parts 4 are used to press and clamp the two cover frames 7-1 and the wire mesh 7-2 to make it easier for the workers to weld the two cover frames 7-1 and the wire mesh 7-2 together to form the cover assembly 7. During the welding operation, resistance welding can be performed on the two cover frames 7-1 and the wire mesh 7-2 through several operating through holes 3-4.

Claims

1. A single-sided tensioning structure tooling, characterized in that: The system includes a base plate structure (3) with several operating through holes (3-4) for laying the cover plate frame (7-1) and the wire mesh (7-2) flat; ratchet tensioning devices (1) that are detachably connected to both ends of the base plate structure (3) and effectively combined with the wire mesh (7-2); pressure bar grooves (3-2) are provided at both ends of the base plate structure (3) and tensioning mounting structures (2) corresponding to the pressure bar grooves (3-2) are installed; tensioning pressure bar structures (6) that can be inserted into the corresponding pressure bar grooves (3-2) are movably connected to each tensioning mounting structure (2) for pressing and tensioning the wire mesh (7-2); a top clamping member (5) is installed on each tensioning mounting structure (2) for pressing down the corresponding tensioning pressure bar structure (6) and locking its position; and several ratchet tensioning devices (1) located between the two sets of tensioning mounting structures (2) are installed on the base plate structure (3). Pressing clamp (4) is used to press the cover plate assembly (7) onto the base plate structure (3); the ratchet tensioning device (1) includes a fixed mounting bracket (1-4) detachably connected to the base plate structure (3), a ratchet shaft (1-1) rotatably connected to the fixed mounting bracket (1-4), and multiple sets of tensioning ratchets (1-3) distributed along its axial direction are installed on the ratchet shaft (1-1), the tip of each tensioning ratchet (1-3) can be embedded into the mesh of the wire mesh (7-2); several through holes are evenly distributed in the circumferential direction on each tensioning ratchet (1-3), and a stop support rod (1-2) detachably connected to the fixed mounting bracket (1-4) and can be inserted into the corresponding through hole of each tensioning ratchet (1-3); the teeth of several tensioning ratchets (1-3) in the two sets of ratchet tensioning devices (1) face opposite directions.

2. The single-sided tensioning structure tooling as described in claim 1, characterized in that: The tensioning bar structure (6) includes a T-shaped tie rod (6-2) that passes through a through hole in the tensioning installation structure (2). A horizontally arranged tensioning bar (6-1) is installed at the lower end of the T-shaped tie rod (6-2). The tensioning bar (6-1) can be embedded in the corresponding bar groove (3-2).

3. The single-sided tensioning structure tooling as described in claim 1, characterized in that: The tensioning mounting structure (2) includes a mounting plate body (2-3) detachably connected to the base plate structure (3), a through groove (2-2) on the mounting plate body (2-3) that connects its two opposite sides and allows the end of the wire mesh (7-2) to pass through, and a pressure bar receiving groove (2-1) on the mounting plate body (2-3) for accommodating the tensioning pressure bar structure (6) and communicating with the through groove (2-2).

4. The single-sided tensioning structure tooling as described in claim 3, characterized in that: The tightening member (5) consists of several tightening bolts that are screwed together with the tensioning installation structure (2) and contact the top of the corresponding tensioning pressure member (6-1).

5. The single-sided tensioning structure tooling as described in claim 1, characterized in that: The substrate structure (3) also includes a substrate body (3-1), two sets of pressure bar grooves (3-2) are located at both ends of the substrate body (3-1), and a frame groove (3-3) matching the cover frame (7-1) is opened on the top surface of the substrate body (3-1), and several operating through holes (3-4) are opened in the frame groove (3-3).

6. The single-sided tensioning structure tooling as described in claim 3, characterized in that: The mounting bracket (1-4) is fixedly connected to the mounting plate body (2-3), and the mounting plate body (2-3) is detachably connected to the base plate structure (3) by bolts.

7. The single-sided tensioning structure tooling as described in claim 1, characterized in that: Each tension ratchet (1-3) is connected to the corresponding ratchet shaft (1-1) through a locking nut, and the axial projection contours of the several tension ratchets (1-3) installed on each ratchet shaft (1-1) completely overlap.

8. The single-sided tensioning structure tooling as described in claim 1, characterized in that: Each pressure bar groove (3-2) has a funnel-shaped cross-section that is wider at the top and narrower at the bottom.

9. The single-sided tensioning structure tooling as described in claim 1, characterized in that: Each pressing clamp (4) is a horizontal clamp.

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