Multi-position equalizing riveting tool

Abstract

The utility model discloses a kind of multi-position equalizing pressure riveting tool, including the upper and lower arrangement upper pressure block and base;The upper pressure block bottom is equipped with pressure riveting end, and the pressure riveting end bottom is equipped with upper rivet groove, and the upper pressure block top is equipped with mounting part;The surface of base opposite with pressure riveting end is equipped with pressure-bearing surface, and the lower rivet groove corresponding with upper rivet groove is equipped on pressure-bearing surface one by one.The utility model is equipped with multiple pressure riveting structures in the bottom of the pressure riveting end of upper pressure block, and workpiece pressure riveting processing time is greatly shortened, and it is adapted to the demand of large-scale production;When using, workpiece is placed between pressure riveting end and pressure-bearing surface, and workpiece stress is more dispersed, and workpiece deformation rate is reduced;The utility model is through synchronous multi-position pressure riveting, equalizing pressure deformation prevention, accurate positioning structure, and completely solve the technical defects of low efficiency, large deformation, poor precision of existing pressure riveting tool.

Description

Technical Field

[0001] This utility model relates to the field of riveting technology, specifically to a multi-position equal pressure riveting fixture. Background Technology

[0002] In the manufacturing of sheet metal parts for electronic devices, automotive parts, and medical device housings, the press riveting process is the core process for achieving a rigid connection between rivets and sheet metal. These types of workpieces often require a dense arrangement of multiple press riveting rivets in a narrow area (e.g., electronic chassis panels require 4-8 fixed rivets to be press riveted simultaneously, and automotive sheet metal brackets require 6-10 connecting rivets to be press riveted), which places stringent requirements on the "efficiency, precision, and sheet flatness" of press riveting.

[0003] Traditional riveting fixtures are mostly single-head designs, allowing only one rivet to be riveted in a single operation. If a workpiece needs five rivets, it requires repeated positioning and riveting five times, which cannot meet the needs of mass production. During multiple riveting processes, the sheet metal is subjected to repeated localized pressure: after the first riveting, the sheet metal undergoes slight deformation in certain areas, and this deformation is amplified during subsequent riveting, ultimately leading to deviations in the overall flatness of the sheet metal. Especially when the rivet spacing is less than 10mm, localized stress concentration is more pronounced, resulting in a high scrap rate due to sheet metal cracking and rivet loosening, significantly increasing production costs. Furthermore, traditional fixtures lack a pressure equalization design, and the pressure for each riveting operation depends on manual adjustment of the pressure equipment parameters, which is prone to causing differences in force on different rivets due to operational errors. Uneven force can cause problems such as inconsistent rivet insertion depth, and concave or convex riveting surfaces, requiring rework and further reducing production efficiency. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a multi-position equal-pressure riveting fixture that can perform multi-position riveting at one time, ensuring that each rivet is subjected to the same force, while maintaining the overall force on the workpiece and preventing deformation of the workpiece after multiple riveting operations.

[0005] The technical solution adopted by this utility model is: a multi-position equal pressure riveting fixture, including an upper pressure block and a base arranged vertically; the bottom of the upper pressure block is provided with a riveting end, the bottom of the riveting end is provided with an upper riveting groove, and the top of the upper pressure block is provided with an installation part; the surface of the base opposite to the riveting end is provided with a pressure bearing surface, and the pressure bearing surface is provided with a lower riveting groove arranged one-to-one with the upper riveting groove.

[0006] In this technical solution, the upper pressure block is connected to the pressure equipment through the mounting part, the base is installed at the riveting station, and the workpiece to be processed is placed between the riveting end and the bearing surface. Since the riveting end and the bearing surface can press multiple screws at one time, it can ensure that the plate is subjected to uniform force, so that the pressed plate surface is flat and uniform, and the plate is not easily deformed. The pressure at each riveting position is the same, ensuring that each rivet is subjected to the same and uniform force, which significantly improves the processing quality and efficiency.

[0007] Preferably, the upper end of the mounting part is provided with a plurality of spaced mounting holes, and the outer side of the mounting part has a locking hole that radially penetrates each mounting hole.

[0008] Preferably, a contact washer is fitted onto the mounting portion.

[0009] Preferably, the base has a fixing platform at its bottom, and the fixing platform has fixing holes arranged around the base.

[0010] Preferably, each outer peripheral surface of the fixed platform is provided with a positioning groove that penetrates the bottom of the fixed platform.

[0011] The beneficial effects of this utility model are as follows: The bottom of the riveting end of the upper pressure block in this utility model is provided with multiple riveting structures, which greatly shortens the riveting processing time of the workpiece and is suitable for the needs of large-scale production; When in use, the workpiece is placed between the riveting end and the pressure bearing surface, and the workpiece is subjected to more dispersed force, reducing the workpiece deformation rate; This utility model completely solves the technical defects of low efficiency, large deformation and poor accuracy of existing riveting fixtures through the structure of synchronous multi-position riveting, uniform pressure to prevent deformation and precise positioning, and has extremely high practical value and market promotion prospects. Attached Figure Description

[0012] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0013] Figure 1 This is a perspective view of the multi-position equalizing pressure riveting fixture provided in the embodiments of this utility model.

[0014] Reference numerals in the attached drawings: upper pressure block 100, mounting part 110, mounting hole 111, locking hole 112, base 200, pressure bearing surface 210, lower riveting groove 211, fixing platform 220, fixing hole 221, positioning groove 222, contact washer 300, workpiece. Detailed Implementation

[0015] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0016] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0017] like Figure 1As shown in the figure, a specific embodiment of the present invention provides a multi-position equal pressure riveting fixture, including an upper pressure block 100 and a base 200 arranged vertically; the bottom of the upper pressure block 100 is provided with a riveting end, the bottom of the riveting end is provided with an upper riveting groove, and the top of the upper pressure block 100 is provided with a mounting part 110; the surface of the base 200 opposite to the riveting end is provided with a pressure bearing surface 210, and the pressure bearing surface 210 is provided with a lower riveting groove 211 arranged one-to-one with the upper riveting groove.

[0018] like Figure 1 As shown, with the above-described configuration, the upper pressure block 100 of the bell riveting device in this embodiment is connected to the pressure equipment via the mounting part 110. The base 200 is installed at the riveting station. The workpiece to be processed is placed between the riveting end and the bearing surface 210. Since the riveting end and the bearing surface 210 can press multiple screws at once, it can ensure that the plate is subjected to uniform force, making the pressed plate surface flat and uniform. Moreover, the plate is not easily deformed. The pressure at each riveting position is the same, ensuring that each rivet is subjected to the same and uniform force, which significantly improves the processing quality and efficiency.

[0019] As mentioned above, the upper pressure block 100 is connected to the pressure end of the pressure device via the mounting part 110. In this embodiment, the upper end of the mounting part 110 is provided with a plurality of spaced mounting holes 111, and the outer side of the mounting part 110 has a locking hole 112 that radially penetrates each mounting hole 111. In this way, the pressure mounting end of the pressure device can be inserted and fitted into the mounting hole 111. After positioning and installation, the upper pressure block 100 can be installed by inserting a locking structure (such as a locking screw) through the locking hole 112, which improves the convenience of disassembly and assembly.

[0020] like Figure 1 As shown, in this embodiment, a contact washer 300 is fitted onto the mounting part 110. The contact washer 300 is used to contact the pressure end of the pressure equipment, which can reduce abnormal noise from the equipment and improve the stability of installation and operation.

[0021] like Figure 1 As shown, in order to stably install the base 200 at the riveting station, this embodiment provides a fixing platform 220 at the bottom of the base 200, and the fixing platform 220 has fixing holes 221 arranged around the base 200. In this way, after the fixing platform 220 is installed at the riveting station, it can be stably installed by engaging with fixing bolts through the fixing holes 221. At the same time, this embodiment also provides positioning grooves 222 penetrating the bottom of the fixing platform 220 on each outer peripheral surface. When the fixing platform 220 is installed, it is matched with the positioning structure through the positioning grooves 222 to achieve accurate positioning and avoid installation position deviation.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A multi-position equalizing pressure riveting fixture, characterized in that; It includes an upper pressure block (100) and a base (200) arranged vertically; The upper pressure block (100) is provided with a riveting end at the bottom, and an upper riveting groove at the bottom of the riveting end. The upper pressure block (100) is provided with a mounting part (110) at the top. The base (200) has a pressure-bearing surface (210) on the surface opposite to the riveting end, and the pressure-bearing surface (210) has a lower riveting groove (211) arranged in a one-to-one correspondence with the upper riveting groove.

2. The multi-position equalizing pressure riveting fixture according to claim 1, characterized in that; The upper end of the mounting part (110) is provided with a plurality of spaced mounting holes (111), and the outer side of the mounting part (110) has a locking hole (112) that radially penetrates the mounting hole (111) corresponding to each mounting hole (111).

3. The multi-position equalizing pressure riveting fixture according to claim 1, characterized in that; A contact washer (300) is fitted onto the mounting part (110).

4. The multi-position equalizing pressure riveting fixture according to claim 1, characterized in that; The base (200) has a fixing platform (220) at its bottom, and the fixing platform (220) has fixing holes (221) arranged around the base (200).

5. The multi-position equalizing pressure riveting fixture according to claim 1, characterized in that; Each outer peripheral surface of the fixed platform (220) is provided with a positioning groove (222) that penetrates the bottom of the fixed platform (220).

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