Riveting tool capable of adjusting crimping forming thickness

Abstract

The utility model discloses a pressing rivet tool capable of adjusting the pressing connection forming thickness. The pressing connection forming thickness is controlled through the stroke of an ejector rod. Comprising a base, the base is in a C shape, a stud extending downwards is arranged at the lower end of the top wall of the base, a locking nut and a limiting thread sleeve are in threaded fit with the stud, the locking nut locks the axial position of the limiting thread sleeve, a guide through hole is formed in the top wall of the base, the stud penetrates through the guide through hole downwards, and an ejector rod is in sliding fit with the interior of the guide through hole; a limiting contraction section and an ejector rod pressing head are arranged at the bottom of the ejector rod, the ejector rod is in sliding fit with an inner hole of the limiting threaded sleeve, a limiting variable cross section and an ejector rod guide groove are arranged on the lower portion of the inner hole of the limiting threaded sleeve, the limiting variable cross section is used for being attached to the limiting contraction section of the ejector rod and limiting the lower limit position of the ejector rod, and the ejector rod pressing head is in sliding fit with the ejector rod guide groove. The lower end face of the ejector rod pressing head is used for achieving the rivet pressing function, a pressing rod is hinged to the top wall of the base, and the free end of the pressing rod is used for applying pressure to the upper end of the ejector rod.

Description

Technical Field

[0001] The utility model relates to the technical field of press riveting, in particular to a press riveting tool capable of adjusting the thickness of press fitting molding. Background Art

[0002] Generally, a press riveting tool presses a rivet downward through a ejector rod to cause the rivet to deform, so as to tightly rivet two assembled parts together. For a conventional press riveting tool, there is no limit constraint on the longitudinal stroke of the ejector rod during the press fitting process, which will result in uncontrollable final molding thickness and is also prone to over extrusion during the riveting process, causing damage to the rivet or assembled parts. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a press riveting tool capable of adjusting the thickness of press fitting molding, and controlling the thickness of press fitting molding through the stroke of the ejector rod.

[0004] The purpose of the utility model is realized as follows:

[0005] A press riveting tool capable of adjusting the thickness of press fitting molding includes a base. The base is C-shaped, the upper surface of the bottom wall of the base is a pressure bearing surface, a stud extending downward is provided at the lower end of the top wall of the base, and a locking nut and a limit sleeve are in threaded fit on the stud. The locking nut locks the axial position of the limit sleeve. A guiding through hole is provided on the top wall of the base, and the guiding through hole penetrates the stud downward. A ejector rod is slidably fitted in the guiding through hole. A limit shrinkage section and a ejector rod pressing head are provided at the bottom of the ejector rod. The ejector rod is slidably fitted in the inner hole of the limit sleeve. A limit variable cross section and a ejector rod guiding groove are provided at the lower part of the inner hole of the limit sleeve. The limit variable cross section is used to fit with the limit shrinkage section of the ejector rod to limit the lower limit position of the ejector rod. The ejector rod pressing head is slidably fitted with the ejector rod guiding groove. The lower end surface of the ejector rod pressing head is a press riveting action surface, and the lower end surface of the ejector rod pressing head is used to realize the press riveting function. A pressing rod is hinged on the top wall of the base, and the free end of the pressing rod is used to apply pressure to the upper end of the ejector rod.

[0006] Preferably, a pressing rod fixing lug is erected on the top wall of the base, and the pressing rod is hinged by a bolt through the pressing rod fixing lug.

[0007] Due to adopting the above technical solution, the utility model has the following beneficial effects:

[0008] Through the cooperation between the assembly cross sections, the longitudinal stroke of the ejector rod is restricted; and through threaded assembly, the function of adjustable longitudinal press fitting molding thickness is realized, which is applicable to various press riveting molding processes. Description of the Drawings

[0009] Figure 1 It is a structural schematic diagram of the utility model;

[0010] Figure 2Schematic structural diagram of the ejector rod;

[0011] Figure 3 Schematic structural diagram of the base;

[0012] Figure 4 Schematic structural diagram of the limit sleeve;

[0013] Figure 5 Schematic cross-sectional structural diagram of the present utility model. Detailed implementation manners

[0014] A riveting tool capable of adjusting the crimping forming thickness, comprising a base 03, the base 03 is in a C shape, the upper surface of the bottom wall of the base is a bearing surface, a stud 03-2 extending downward is provided at the lower end of the top wall of the base, a locking nut 05 and a limit sleeve 04 are in threaded fit on the stud 03-2, the locking nut 05 locks the axial position of the limit sleeve 04, a guiding through hole 03-3 is provided on the top wall of the base 03, the guiding through hole 03-3 penetrates through the stud 03-2 downward, an ejector rod 01 is in sliding fit in the guiding through hole 03-3, a limit shrinking section 01-1 and an ejector rod head 01-2 are provided at the bottom of the ejector rod 01, the ejector rod 01 is in sliding fit with the inner hole of the limit sleeve 04, a limit variable cross-section 04-2 and an ejector rod guiding groove 04-3 are provided at the lower part of the inner hole of the limit sleeve 04, the limit variable cross-section 04-2 is used to fit with the limit shrinking section 01-1 of the ejector rod 01 to limit the lower limit position of the ejector rod 01, the ejector rod head 01-2 is in sliding fit with the ejector rod guiding groove 04-3, the lower end surface of the ejector rod head is a riveting action surface, and the lower end surface of the ejector rod head 01-2 is used to realize the riveting function.

[0015] A pressure rod 06 is hinged on the top wall of the base, and the free end of the pressure rod 06 is used to apply pressure to the upper end of the ejector rod 01. In this embodiment, a pressure rod fixing lug 03-1 is erected on the top wall of the base, and the pressure rod 06 is hinged through a bolt 02 on the pressure rod fixing lug 03-1.

[0016] Specifically:

[0017] The present invention mainly consists of an ejector rod 01, a bolt 02, a base 03, a limit sleeve 04, a locking nut 05, and a pressure rod 06. After the base 03 is fixed on a horizontal plane, the locking nut 05 is installed in cooperation with the stud 03-2 provided on the base 03, the limit sleeve 04 is installed in cooperation with the stud 03-2 through a thread 04-1, the ejector rod 01 is installed in cooperation with the guiding through hole 03-3 provided on the base 03, and the limit shrinking section 01-1 and the ejector rod head 01-2 provided on the ejector rod 01 are installed in cooperation with the limit variable cross-section 04-2 and the ejector rod guiding groove 04-3 provided on the limit sleeve 04.

[0018] Working principle:

[0019] After the riveting tool is assembled, fix the base 03 on a horizontal workbench. After placing the rivet on the riveting part into the crimping area (bearing surface), press down the pressure rod 06. Under the fixing action of the bolt 02, the pressure rod pushes the ejector rod 01 downward, thereby realizing the crimping of the rivet. The threaded fit between the thread 04-1 on the limit sleeve 04 and the stud 03-2 can realize the up and down height adjustment of the limit sleeve 04 through the threaded fit. The thickness adjustment section 07 is as shown in the figure. After adjusting the height of the limit sleeve 04 according to the crimping thickness requirement, lock and limit the limit sleeve 04 through the lock nut 05 to ensure the stability of the limit sleeve 04 during the crimping process; the cooperation between the limit shrinkage section 01-1 provided on the inner ejector rod 01 and the limit variable cross-section 04-2 provided on the limit sleeve 04 restricts the longitudinal crimping stroke of the ejector rod 01, thereby ensuring that the compression amount of the rivets is consistent during the crimping process of all rivets under the same crimping requirement.

[0020] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in terms of form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A riveting tool capable of adjusting the thickness of crimping forming, characterized in that: The invention comprises a base, which is C-shaped. The upper surface of the bottom wall of the base is a pressure-bearing surface. A stud extending downward is provided at the lower end of the top wall of the base. A locking nut and a limiting screw sleeve are threadedly matched on the stud. The locking nut locks the axial position of the limiting screw sleeve. A guide through hole is provided on the top wall of the base. The guide through hole passes through the stud downward. A push rod is slidably matched in the guide through hole. A limiting contraction section and a push rod pressure head are provided at the bottom of the push rod. The push rod is slidably matched with the inner hole of the limiting screw sleeve. A limiting variable section and a push rod guide groove are provided at the lower part of the inner hole of the limiting screw sleeve. The limiting variable section is used to fit with the limiting contraction section of the push rod to limit the lower limit position of the push rod. The push rod pressure head is slidably matched with the push rod guide groove. The lower end surface of the push rod pressure head is a riveting action surface. A pressure rod is hinged on the top wall of the base. The free end of the pressure rod is used to apply pressure to the upper end of the push rod.

2. A riveting tool capable of adjusting the crimping forming thickness according to claim 1, characterized in that: A pressure rod fixing ear piece is vertically arranged on the top wall of the base, and the pressure rod fixing ear piece is hinged to the pressure rod through bolts.

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