Auxiliary tool for adjusting riveting stroke of squeeze riveter

Abstract

The utility model belongs to the technical field of auxiliary tools for the riveting process, and particularly relates to an auxiliary tool for adjusting the riveting stroke of a squeeze riveter, which comprises an adjusting base plate, an adjusting plate, a depth hook ruler and a pin, the plurality of adjusting plates have set thicknesses and are overlapped in the vertical direction; the adjusting base plate is overlapped above the adjusting plate on the uppermost layer; the pins are connected to the ends of the adjusting base plates, and the adjusting plates are rotationally connected with the pins and can independently rotate. The depth hook ruler is provided with scale marks and is used for measuring the depth of a rivet mounting hole; a boss is arranged on the upper surface of the adjusting base plate. According to the scheme, the auxiliary tool is adopted to estimate the rivet to be formed, and then the auxiliary tool is utilized to calibrate the stroke limit position of the squeeze riveter, so that the stroke adjustment of the squeeze riveter is quicker and more convenient, the adjustment efficiency and the adjustment accuracy are improved, and unnecessary scrapping and loss are reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the auxiliary tool technical field of the pressure riveting process, specifically relates to a kind of auxiliary tools of pressure riveting stroke adjustment of pressure riveter. BACKGROUND

[0002] In the machining and assembly process of mechanical products, a large number of rivets will be used, such as: in the assembly process of an airplane, a large number of rivets are often used to connect and fix the body structure and skin of the airplane, which not only requires a lot of work, but also requires high quality of rivet forming and high skill level of the operator. The qualified standard of rivet after pressure riveting often needs to meet the requirements of good surface quality, small deformation, high connection strength, etc., which requires higher proficiency of the operator in using the pressure riveter.

[0003] When the pressure riveter is used, the stroke limit position of the upper punch head and the lower punch head thereon often needs to be adjusted. When the stroke limit position is adjusted, if the distance between the upper punch head and the lower punch head is greater than the standard height of the rivet after pressure riveting, it often causes unqualified rivet quality; on the contrary, if the distance between the upper punch head and the lower punch head is less than the standard height of the rivet after pressure riveting, it is easy to damage the workpiece being pressure riveted.

[0004] Therefore, during the use of the pressure riveter, the operator adjusts the position of the upper punch head and the lower punch head of the pressure riveter according to the rivet model being pressure riveted, so that when the upper punch head and the lower punch head are at the limit position of the stroke, the distance between them matches the rivet to be formed. In the prior art, the pressure riveter needs to be placed at the workpiece to punch and adjust at the same time, which needs to be tested and corrected multiple times, resulting in low efficiency and easy to cause unnecessary scrap and loss. UTILITY MODEL CONTENTS

[0005] In order to solve the above problems existing in the prior art, the present scheme provides an auxiliary tool for pressure riveting stroke adjustment of a pressure riveter.

[0006] The technical scheme adopted by the utility model is as follows:

[0007] An auxiliary tool for pressure riveting stroke adjustment of a pressure riveter, comprising an adjusting base plate, adjusting plates, a depth hook ruler and a pin; the adjusting plates have a set thickness and are overlapped in the vertical direction; the adjusting base plate is overlapped above the uppermost adjusting plate; the pin is connected to the end of the adjusting base plate, and each adjusting plate is rotatably connected to the pin and can rotate independently; the depth hook ruler is provided with scale marks and is used for depth measurement of a rivet mounting hole; a boss is arranged on the upper surface of the adjusting base plate.

[0008] As an alternative or supplement to the above scheme: the handle end of the depth hook ruler is provided with a connecting hole, and the depth hook ruler is rotatably connected to the pin at the connecting hole.

[0009] As an alternative or supplement to the above scheme: the hook end of the depth hook is provided with a reference hook surface, and the reference hook surface is aligned with the scale mark with a scale of 0; in use, the reference hook surface is attached to the hole along of the rivet mounting hole.

[0010] As an alternative or supplement to the above scheme: the thickness of each part of the adjusting plate is the same, and the adjusting plate has a set thickness.

[0011] As an alternative or supplement to the above scheme: the thickness of different adjusting plates is not the same.

[0012] As an alternative or supplement to the above scheme: the pin is rotationally connected with the adjusting base plate.

[0013] As an alternative or supplement to the above scheme: the adjusting base plate and the adjusting plate are both long strip-shaped flat blocks.

[0014] As an alternative or supplement to the above scheme: the upper surface of the adjusting base plate is provided with a plurality of bosses, the heights of the bosses are different from each other, the heights of the bosses correspond to the diameters of the rivets installed in the rivet mounting holes; size marks are arranged on the adjusting base plate at the bosses, and the size values of the size marks correspond to the diameters of the rivets.

[0015] As an alternative or supplement to the above scheme: the plurality of bosses are arranged at intervals along the length direction of the adjusting base plate; among any two bosses, the boss close to the pin is higher than the boss away from the pin.

[0016] As an alternative or supplement to the above scheme: the height δ1 of the boss protruding from the upper surface of the adjusting base plate is:

[0017] δ1=KD+σ

[0018] Wherein, K is the forming coefficient of the upset head formed after the rivet is punched, D is the diameter of the rivet, and σ is a compensation coefficient.

[0019] The beneficial effects of the utility model are: the auxiliary tool is used for pre-estimating the rivet to be formed, and then the auxiliary tool is used for calibrating the stroke limit position of the press riveter, so that the stroke adjustment of the press riveter is more convenient and fast, the efficiency and accuracy of the adjustment are improved, and unnecessary scrap and loss are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiment of the present scheme or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced.

[0021] Figure 1 is the auxiliary tool of the present scheme.

[0022] Figure 2 is the top view of the auxiliary tool of the present application;

[0023] Figure 3 is the structural view of the depth gauge;

[0024] Figure 4 is the structural view after the rivet connects two workpieces.

[0025] In the figure: 1-adjusting base plate; 2-adjusting plate; 3-depth gauge; 31-reference hook surface; 32-scale mark; 4-pin; 5- boss; 6-rivets; 7-lower punch head; 8-upper punch head; 9-first workpiece; 10-second workpiece. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments will be described clearly and completely below with reference to the drawings, and the described embodiments are only a part of the embodiments, and all other embodiments obtained by those skilled in the art without creative labor on the basis of the embodiments in the present application shall fall within the protection scope of the present application.

[0027] As Figures 1 to 4 shown, the present embodiment designs an auxiliary tool for adjusting the riveting stroke of a riveting machine, which comprises an adjusting base plate 1, an adjusting plate 2, a depth gauge 3 and a pin 4 and the like components.

[0028] The adjusting base plate 1 is a long strip-shaped flat block structure, the thickness of each part of the adjusting plate 2 is the same, and the adjusting plate 2 has a set thickness. The thickness of the adjusting base plate 1 is a certain set value according to actual needs. The end of the adjusting base plate 1 is provided with a connecting hole, and the adjusting base plate 1 can be rotationally connected or fixedly connected with the pin 4 at the connecting hole. The thicknesses of different adjusting plates 2 are not the same.

[0029] A boss 5 is arranged on the upper surface of the adjusting base plate 1, a plurality of bosses 5 are arranged on the upper surface of the adjusting base plate 1, the heights of the bosses 5 are different from each other, the heights of the bosses 5 correspond to the diameters of the rivets 6 installed in the rivet 6 installation holes, and size marks are arranged on the adjusting base plate 1 at the bosses 5, the size values of the size marks correspond to the diameters of the rivets 6.

[0030] The plurality of bosses 5 are arranged at intervals along the length direction of the adjusting base plate 1, and among any two bosses 5, the boss 5 close to the pin 4 is higher than the boss 5 away from the pin 4. Figure 1 As shown, the size marks at each boss 5 can be 2.5, 3, 3.5, 4, 4.5 and 5 respectively, and the diameters of the corresponding bosses 5 are 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm and 5 mm respectively, so as to facilitate the user to observe intuitively.

[0031] The height δ1 of the boss 5 protruding from the upper surface of the adjusting base plate 1 is:

[0032] δ1=KD+σ

[0033] Wherein, K is the forming coefficient of the upset head formed after the rivet 6 is punched (the specific value is artificially determined according to the needs), D is the diameter of the rivet 6, and σ is the compensation coefficient (for compensating errors).

[0034] The adjusting plate 2 is a long strip-shaped flat block structure; the adjusting plate 2 has a plurality, generally 6-10, the thickness of each adjusting plate 2 is not the same, and is overlapped in the vertical direction, and the adjusting base plate 1 is overlapped above the uppermost adjusting plate 2. Each adjusting plate 2 is rotatably connected with the pin 4 and each adjusting plate 2 can be independently rotated.

[0035] The depth ruler 3 is provided with scale marks 32 and is used for measuring the depth of the rivet 6 mounting hole; the handle end of the depth ruler 3 is provided with a connecting hole, and the depth ruler 3 is rotatably connected with the pin 4 at the connecting hole. The hook end of the depth ruler 3 is provided with a reference hook surface 31, and the reference hook surface 31 is aligned with the scale mark 32 with a scale of 0; in use, the reference hook surface 31 is attached to the hole along of the rivet 6 mounting hole.

[0036] The auxiliary tool for adjusting the pressing rivet stroke of the pressing rivet machine in the embodiment is used as follows: taking rivet 6 connecting first workpiece 9 and second workpiece 10 as an example:

[0037] S1: using the depth ruler 3 to measure the rivet 6 mounting hole depth H1 after the first workpiece 9 and the second workpiece 10 are overlapped, and the reference hook surface 31 of the depth ruler 3 is tightly attached to the lower surface of the second workpiece 10 in use;

[0038] S2: rotating the adjusting plate 2 to the lower side of the adjusting base plate 1, so that the total thickness of the plurality of adjusting plates 2 and the adjusting base plate 1 is the same as the rivet 6 mounting hole depth H1;

[0039] S3: according to the diameter of the rivet 6 used, selecting the corresponding boss 5, so that the total thickness of the boss 5, the plurality of adjusting plates 2 and the adjusting base plate 1 reaches H2, and H2 is the standard height of the rivet 6 after pressing rivet;

[0040] S4, placing the auxiliary tool between the upper punch 8 and the lower punch 7 of the pressing rivet machine, operating the pressing rivet machine, and the upper punch 8 and the lower punch 7 approach along the stroke direction and reach the limit position of the stroke; adjusting the position of the upper punch 8 or the lower punch 7, so that the distance between the upper punch 8 and the lower punch 7 is consistent with the current thickness of the auxiliary tool (all equal to H2).

[0041] The above embodiments are merely examples for the purpose of clarity and are not intended to limit the embodiments; all the embodiments are not required to be enumerated here. The obvious changes or variations derived therefrom are still within the protection scope of the present technology.

Claims

1. An auxiliary tool for the adjustment of the press-riveting stroke of a press-riveting machine, characterized in that: The depth gauge comprises a regulating base plate (1), a plurality of regulating plates (2), a depth gauge (3) and a pin (4). The regulating plates (2) have a set thickness and are stacked in a vertical direction. The regulating base plate (1) is stacked above the uppermost regulating plate (2). The pin (4) is connected to the end of the regulating base plate (1), and each regulating plate (2) is rotatably connected to the pin (4) and can rotate independently. The depth gauge (3) is provided with scale marks (32) and is used for measuring the depth of a rivet (6) mounting hole. The regulating base plate (1) is provided with a boss (5) on the upper surface.

2. A tool as claimed in claim 1, characterised in that: The handle end of the depth gauge (3) is provided with a connecting hole, and the depth gauge (3) is rotatably connected to the pin (4) at the connecting hole.

3. A tool as claimed in claim 1, characterised in that: The hook end of the depth gauge (3) is provided with a reference hook surface (31), and the reference hook surface (31) is aligned with the scale mark (32) with a scale of 0. In use, the reference hook surface (31) is attached to the hole along portion of the rivet (6) mounting hole.

4. The tool according to claim 1, wherein: The thickness of each part of the regulating plate (2) is the same, and the regulating plate (2) has a set thickness.

5. A tool as claimed in claim 4, wherein: The thickness of different regulating plates (2) is not the same.

6. The tool according to claim 1, wherein: The pin (4) is rotatably connected to the regulating base plate (1).

7. The tool according to claim 1, wherein: The regulating base plate (1) and the regulating plate (2) are both long strip-shaped flat blocks.

8. The tool according to claim 1, wherein: The upper surface of the regulating base plate (1) is provided with a plurality of bosses (5), and the heights of the bosses (5) are different. The height of the boss (5) corresponds to the diameter of the rivet (6) installed in the rivet (6) mounting hole. The regulating base plate (1) at the boss (5) is provided with a size mark, and the size value of the size mark corresponds to the diameter of the rivet (6).

9. A press-riveter press-riveting stroke adjustment aid according to claim 8, characterised in that: The plurality of bosses (5) are arranged at intervals along the length direction of the regulating base plate (1). Among any two bosses (5), the boss (5) close to the pin (4) is higher than the boss (5) away from the pin (4).

10. A tool as claimed in claim 8, characterised in that: The height δ1 of the boss (5) protruding from the upper surface of the regulating base plate (1) is: δ1=KD+σ Wherein, K is the forming coefficient of the upset head formed after the rivet (6) is punched, D is the diameter of the rivet (6), and σ is a compensation coefficient.

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