Point inspection port self-riveting tool

Abstract

The present application relates to a kind of point inspection mouth self riveting tool, belong to pressure processing tooling fixture technical field.The tool includes positioning device being arranged on workbench and riveting mechanism;Positioning device includes fixed on workbench adjacent side positioning slot and located in the outside of adjacent end top corner positioning mechanism;Top corner positioning mechanism is constituted by the positioning block that can be displaced along the direction of top corner bisector;Positioning block is adjacent to the one end of adjacent side positioning slot with the right-angle V-shaped positioning recess of the corner angle of rivet hole adaptation;Riveting mechanism is located in the inside of adjacent end, is constituted by the riveting head that can be displaced along the direction of top corner bisector;The one end of riveting head is adjacent to adjacent side positioning slot with V-shaped riveting head;Two sides of riveting head are respectively with the riveting convex of the rivet hole position corresponding to corner angle.Adopting the present application significantly improves work efficiency, helps to ensure quality;And without rivet, process is more simple.

Description

Technical Field

[0001] This invention relates to a riveting fixture, and more particularly to a self-riveting fixture for an inspection port, belonging to the field of pressure processing fixtures and jigs. Background Technology

[0002] To facilitate installation and maintenance, modern buildings often have pre-installed, closable inspection ports in areas such as ceilings, with structures disclosed in Chinese patent documents such as applications 201620410034.2 and 201720891931.4. Figure 8 As shown, it includes a rectangular outer frame O made of commonly used aluminum profiles for fixed installation and an openable rectangular inner frame I. Adjacent sides of the outer frame O and the inner frame I are fixed together by corner protectors L. The fixing method uses a simple and reliable riveting connection. For a long time, riveting has relied on rivets, which is inefficient. Summary of the Invention

[0003] The primary objective of this invention is to address the shortcomings of the existing technology by proposing a self-riveting fixture for inspection ports that can significantly improve work efficiency and ensure the quality of fastening.

[0004] To achieve the above objectives, the basic technical solution of the self-riveting fixture for the inspection port of the present invention is as follows: it includes a positioning device and a riveting mechanism placed on the workbench.

[0005] The positioning device includes an adjacent side positioning groove fixed on the workbench and a apex corner positioning mechanism located on the outer side of the adjacent side end; the apex corner positioning mechanism is composed of a positioning block that can be moved along the direction of the apex corner bisector; one end of the positioning block adjacent to the adjacent side positioning groove has a right-angle V-shaped positioning notch adapted to the rivet-hole corner.

[0006] The riveting mechanism is located inside the adjacent end and consists of a riveting head that can be moved along the direction of the bisector of the apex angle; one end of the positioning groove of the adjacent side of the riveting head has a V-shaped riveting head; both sides of the riveting head have riveting protrusions corresponding to the riveting hole positions of the wrap angle.

[0007] In use, place the adjacent sides of the inspection port to be riveted in the adjacent side positioning groove on the workbench, and align the ends to be riveted. Drive the corner positioning mechanism to press and fix the corner to the outside of the two adjacent ends to be riveted. Then drive the riveting mechanism to press the riveting head against the inside of the two adjacent ends to be riveted. After continuing to apply pressure, the riveting protrusion will press the adjacent material to extend into the riveting hole of the corner, thereby forming a self-riveting head and riveting the adjacent side to the corner.

[0008] The riveting process of this invention is easy to automate, thus significantly improving work efficiency. The riveting process is organically combined with positioning, which is very reliable and helps to ensure quality. Moreover, no rivets are required, making the process simpler. The self-riveting heads on both sides of the right angle simultaneously generate an interference fit that constrains each other, making the riveting reliable.

[0009] A further improvement to the present invention is that: the workbench is provided with four positioning devices and corresponding riveting mechanisms that correspond to the four corners of the inspection port frame.

[0010] A further improvement to the present invention is that the top corner positioning mechanism includes a base plate fixed on the table, a cylinder mounted on the base plate, a positioning seat connected to the telescopic end of the cylinder and forming a sliding pair with the slide rail on the base plate, and a positioning block installed on the inner end of the positioning seat.

[0011] A further improvement of the present invention is that the positioning device includes four adjacent positioning grooves formed by four pairs of inner positioning strips and outer positioning strips fixed on the worktable.

[0012] The invention is further improved in that: the riveting head of the riveting mechanism is mounted on the slide, the slide and the corresponding track fixed under the table surface of the workbench form a sliding pair and are hinged to the top support end of the hydraulic cylinder; the end of the cylinder body away from the top support end of the hydraulic cylinder is hinged on the "well" shaped central frame.

[0013] A further improvement to the present invention is that the central hinge of the central frame is mounted under the worktable surface. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 This is a three-dimensional structural schematic diagram of Embodiment 1 of the present invention.

[0016] Figure 2 yes Figure 1 A cross-sectional structural diagram of the embodiment.

[0017] Figure 3 yes Figure 1 A bottom view of the structure of the embodiment.

[0018] Figure 4 yes Figure 1 A schematic diagram of the riveting head structure in the embodiment.

[0019] Figure 5 yes Figure 4 The right view.

[0020] Figure 6 yes Figure 1 A three-dimensional schematic diagram of the self-riveting structure in the embodiment.

[0021] Figure 7 yes Figure 1 A schematic diagram of the three-dimensional structure of the inspection port after riveting and assembly in the embodiment.

[0022] Figure 8 yes Figure 1A schematic diagram of the complete three-dimensional structure of the inspection port after riveting in the embodiment. Detailed Implementation

[0023] Example 1

[0024] The self-riveting fixture for the inspection port in this embodiment is as follows: Figures 1 to 3 As shown, the workbench 1 has four positioning devices and corresponding riveting mechanisms 2 installed on its surface, each corresponding to one of the four corners of the inspection port outer frame O. This constitutes a highly efficient self-riveting fixture that can perform four-corner riveting simultaneously.

[0025] The positioning device includes four adjacent-side positioning grooves formed by four pairs of inner positioning strips 4.1 and outer positioning strips 4.2 fixed to the workbench 1, and four apex positioning mechanisms 3 located on the outer sides of the adjacent-side ends. Each apex positioning mechanism 3 includes a base plate 3.1 fixed to the workbench 1, a cylinder 3.2 mounted on the base plate 3.1, a positioning seat 3.3 connected to the telescopic end of the cylinder 3.2 and forming a sliding pair with the slide rail on the base plate 3.1, and a positioning block 3.4 installed at the inner end of the positioning seat 3.3. The slide rail and the sliding pair extend along the apex bisector direction, and the end of the positioning block adjacent to the adjacent-side positioning groove has a right-angle V-shaped positioning notch adapted to the rivet-hole corner L. Therefore, each side of the outer frame O can be located in the corresponding positioning groove and the ends can be brought together; while the extension of the telescopic end of the cylinder can reliably press the corner L on the outer side of each corner.

[0026] Each riveting mechanism 2 is located on the inner side of the adjacent edge and consists of a riveting head 2.2 that can move along the bisector of the apex angle. The riveting head 2.2 is mounted on a slide 2.3. The slide 2.3 and two parallel rails 2.5 fixed under the worktable 1 form a sliding pair and are hinged to the corresponding hydraulic cylinder support end 2.4. The cylinder body 2.6 of the hydraulic cylinder, away from the support end, is hinged to a "well"-shaped central frame 5, the center of which is hinged under the worktable 1. An oil tank 7 and a hydraulic pump 6 supplying power to each hydraulic cylinder are located under the worktable 1. By controlling the hydraulic pump, the corresponding riveting head can be moved towards the four corners of the outer frame through each hydraulic cylinder, generating the pressure required for self-riveting. Furthermore, each hinged connection structure has an adaptive function, ensuring smooth and stable displacement of the riveting head.

[0027] Each slide 2.3 has a V-shaped rivet head 2.1 fixedly installed at one end of the adjacent positioning groove. The specific structure of the V-shaped rivet head 2.1 is as follows: Figures 4 to 6As shown, the riveting end of the riveting tool is connected to the front end "H" shaped surface 2-4 through two tapered surfaces 2-2 forming a right angle, and the starting points of the two tapered surfaces and the four corners of the "H" shaped surface 2-4 are provided with stepped protrusions 2-1, 2-3 corresponding to the square rivet hole M position with the included angle L. During operation, each protrusion can simultaneously extrude the aluminum profile of the outer frame from inside to outside, so that the extruded part of the outer surface produces extrusion deformation to fill the square rivet hole M. After the extrusion deformation fills the square rivet hole M, the self-riveting connection of the two adjacent edges of the outer frame is stable (see Figure 7 ).

[0028] The four-corner self-riveting tool of the present embodiment not only has high efficiency, but also can complete the riveting of the entire outer frame or inner frame at one time (see Figure 8 ), and the positioning is very reliable, the pressure is self-balanced, and the riveting quality is excellent.

[0029] In addition to the above embodiments, the present application can also have other implementation manners. Any technical solution formed by equivalent replacement or equivalent transformation falls within the protection scope required by the present application.

Claims

1. A self-riveting fixture for an inspection port, comprising a positioning device and a riveting mechanism mounted on a worktable; characterized in that: The positioning device includes an adjacent side positioning groove fixed on the workbench and a apex corner positioning mechanism located on the outer side of the adjacent side end; the apex corner positioning mechanism is composed of a positioning block that can be moved along the direction of the apex corner bisector; one end of the positioning block adjacent to the adjacent side positioning groove has a right-angle V-shaped positioning notch adapted to the rivet-hole corner. The riveting mechanism is located inside the adjacent end and consists of a riveting head that can be moved along the direction of the bisector of the apex angle; one end of the positioning groove of the adjacent side of the riveting head has a V-shaped riveting head; both sides of the riveting head have riveting protrusions corresponding to the riveting hole positions of the wrap angle.

2. The self-riveting fixture for the inspection port according to claim 1, characterized in that: The workbench is equipped with four positioning devices and corresponding riveting mechanisms that correspond to the four corners of the inspection port frame.

3. The self-riveting fixture for the inspection port according to claim 2, characterized in that: The apex positioning mechanism includes a base plate fixed on the table, a cylinder mounted on the base plate, a positioning seat connected to the telescopic end of the cylinder and forming a sliding pair with the slide rail on the base plate, and a positioning block installed inside the positioning seat.

4. The self-riveting fixture for the inspection port according to claim 3, characterized in that: The positioning device includes four adjacent positioning grooves formed by four pairs of inner and outer positioning strips fixed on the workbench.

5. The self-riveting fixture for the inspection port according to claim 4, characterized in that: The riveting head of the riveting mechanism is mounted on a slide block. The slide block and a corresponding track fixed under the table surface of the workbench form a sliding pair and are hinged to the top support end of the hydraulic cylinder. The end of the hydraulic cylinder body away from the top support end is hinged on a "well"-shaped central frame.

6. The self-riveting fixture for the inspection port according to claim 5, characterized in that: The central hinge of the central frame is mounted under the worktable surface.

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