Rivet pressing device for armature push rod assembly

Abstract

The utility model relates to the technical field of rivet pressing devices, in particular to an armature push rod assembly rivet pressing device, which comprises a first rivet pressing assembly, a second rivet pressing assembly, a third rivet pressing assembly and a fourth rivet pressing assembly, the limiting piece is arranged in the first riveting assembly; the second riveting assembly and the first riveting assembly are coaxially arranged, and the second riveting assembly is provided with a second through hole and a second containing cavity which are coaxially arranged and communicate with each other; the base is arranged at the end, away from the first riveting assembly, of the second riveting assembly, and the position, relative to the second riveting assembly, of the base in the axial direction can be adjusted. The pressing rivet device can adapt to riveting of push rods and armatures of different sizes, and the universality of the pressing rivet device for the armature push rod assembly is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pressure riveting device technical field especially relates to a armature push rod assembly pressure riveting device. BACKGROUND

[0002] The armature is fixedly arranged on the push rod, and the action of the push rod is realized by controlling the energization and de-energization of the electromagnet in the electromagnetic valve and cooperating with the armature.

[0003] When the armature and the push rod are riveted and fixed, the armature and the push rod need to be riveted by using a pressure riveting device. Because the lengths of different models of push rods are different, corresponding pressure riveting devices need to be used for different push rod lengths, which leads to poor universality of the pressure riveting device.

[0004] Therefore, an armature push rod assembly pressure riveting device is needed to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model discloses a kind of armature push rod assembly pressure riveting devices, can be riveted to different size push rod and armature, improve the universality of armature push rod assembly pressure riveting device.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] Armature push rod assembly pressure riveting device, comprising:

[0008] First riveting assembly has coaxial line arrangement and is mutually communicated first through hole and first accommodating cavity;

[0009] Limiting piece, the limiting piece is arranged in the first riveting assembly;

[0010] Second riveting assembly, with the first riveting assembly coaxial line arrangement, has coaxial line arrangement and is mutually communicated second through hole and second accommodating cavity;

[0011] Base, the base is arranged in the second riveting assembly away from the first riveting assembly one end, and the position of the base in axial direction can be adjusted relative to the second riveting assembly;

[0012] The armature push rod assembly pressure riveting device is configured as: push rod is arranged in the first through hole and the second through hole, and with the limiting piece and the base abut, armature is located in the first accommodating cavity and the second accommodating cavity, the second riveting assembly and the first riveting assembly can be close to each other to extrude the armature and the push rod riveting.

[0013] In some embodiments, the first riveting assembly comprises a first holder and a first press head, the first holder has the first accommodating cavity and a first positioning slot, the first press head is arranged in the first accommodating cavity, the first press head is provided with the first through hole, the first press head can abut one end of the armature, and the limiting piece is arranged in the first positioning slot.

[0014] In some embodiments, the first press head is provided with a first mounting hole, the first holder is provided with a second mounting hole opposite to the first mounting hole, and a screw passes through the second mounting hole and is connected with the first mounting hole.

[0015] In some embodiments, a plurality of riveting parts are arranged at intervals along the circumference of the first press head and away from the end of the first press head towards the armature.

[0016] In some embodiments, a compression elastic piece is further arranged, one end of the compression elastic piece is arranged in the second mounting slot, and the compression elastic piece abuts the bottom of the second mounting slot.

[0017] In some embodiments, the second riveting assembly comprises a second holder and a second press head, the second holder is provided with the second accommodating cavity, the second press head is arranged in the second accommodating cavity, and the second through hole is arranged in the second press head and the second holder.

[0018] In some embodiments, the end of the second press head towards the first riveting assembly has an annular riveting part.

[0019] In some embodiments, the end of the second holder towards the first riveting assembly is coaxially provided with a butt joint guide part, and the butt joint guide part can be inserted into the first accommodating cavity.

[0020] In some embodiments, the end of the second holder away from the first riveting assembly is provided with a threaded hole, and the base is screwed with the threaded hole.

[0021] In some embodiments, an adjusting gasket is further arranged, and the adjusting gasket is sleeved on the base.

[0022] The utility model discloses beneficial effects:

[0023] The utility model provides a kind of armature push rod assembly riveting device, including coaxial second riveting assembly and first riveting assembly, first riveting assembly has first through hole and first accommodating cavity, second riveting assembly has second through hole and second accommodating cavity, limiting piece is arranged in first riveting assembly, base is provided at the end of second riveting assembly away from first riveting assembly, the position of base can be adjusted in axial direction relative to second riveting assembly.In riveting installation of push rod and armature, push rod is arranged in first through hole and second through hole, and with limiting piece and base abut, armature is located in first accommodating cavity and second accommodating cavity, second riveting assembly and first riveting assembly can be close to each other to extrude armature and push rod riveting.Due to push rod and base and limiting piece abut, by adjusting the position of base in axial direction relative to second riveting assembly, it can adapt to push rod of different lengths, ensure that push rod and armature riveting proceed smoothly, and the versatility of armature push rod assembly riveting device can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the drawings needed to be used in the embodiment of the utility model will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to the content of the embodiment of the utility model and these drawings without creating labor for those skilled in the art.

[0025] Figure 1 It is a schematic diagram of the armature push rod assembly riveting device of the utility model;

[0026] Figure 2 It is an exploded view of the armature push rod assembly riveting device of the utility model;

[0027] Figure 3 It is a sectional view of first riveting assembly in the armature push rod assembly riveting device of the utility model;

[0028] Figure 4 It is a sectional view of second riveting assembly in the armature push rod assembly riveting device of the utility model.

[0029] In the drawing:

[0030] 10, push rod; 20, armature; 1, first riveting assembly; 11, first retainer; 111, first accommodating cavity; 12, first pressure head; 121, first through hole; 122, riveting part; 13, screw; 2, second riveting assembly; 21, second retainer; 211, second accommodating cavity; 212, second through hole; 22, second pressure head; 221, annular riveting part; 3, limiting piece; 4, base; 5, compression elastic member; 6, adjusting gasket. DETAILED DESCRIPTION

[0031] Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above-described drawings.

[0032] In this application, the terms "including", "containing" and "having" or any other similar forms are intended to cover the non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without more limitations, the element defined by the phrase "comprising a" does not exclude the presence of additional identical elements in the process, method, article, or apparatus including the element.

[0033] In this application, the terms "connected", "coupled", "connected", "mounted" can be direct connection, coupling or mounting, or indirect connection, coupling or mounting. For example, direct connection refers to the connection of two parts or components without the need for an intermediate part, while indirect connection refers to the connection of two parts or components with at least one intermediate part, and the two parts or components are connected through the intermediate part. In addition, "connection" and "coupling" are not limited to physical or mechanical connection or coupling, and can include electrical connection or coupling.

[0034] In this application, those of ordinary skill in the art will understand that the functions performed by the components can be performed by one component, multiple components, one part, or multiple parts. Similarly, the functions performed by the parts can also be performed by one part, one component, or multiple parts in combination.

[0035] In this application, the terms "up", "down", "left", "right", "front", "back", and the like are described in the orientation and positional relationship shown in the drawings, and should not be understood as limiting the embodiments of the application. In addition, it should be understood in the context that when referring to one element connected to another element "on" or "under", it can be directly connected to another element "on" or "under", or indirectly connected to another element "on" or "under" through an intermediate element. It should also be understood that the terms "up", "down", "left", "right", "front", "back", and the like not only represent the positive direction, but also can be understood as the side direction. For example, the lower side can include the lower side, the lower left side, the lower right side, the front lower side, and the back lower side, etc.

[0036] When the push rod and armature of the electromagnetic valve are riveted, in order to adapt to the riveting of push rods and armatures of different sizes, improve the versatility of the armature push rod assembly riveting device, such as Figures 1-4The utility model provides a armature push rod assembly riveting device. The armature push rod assembly riveting device comprises a first riveting assembly 1, a limiting piece 3, a second riveting assembly 2 and a base 4.

[0037] The first riveting assembly 1 has a first through hole 121 and a first accommodating cavity 111 coaxially arranged and in communication with each other. The limiting piece 3 is arranged in the first riveting assembly 1. The second riveting assembly 2 is coaxially arranged with the first riveting assembly 1 and has a second through hole 212 and a second accommodating cavity 211 coaxially arranged and in communication with each other. The base 4 is arranged at one end of the second riveting assembly 2 away from the first riveting assembly 1, and the position of the base 4 relative to the second riveting assembly 2 in the axial direction can be adjusted. The armature push rod assembly riveting device is configured such that the push rod 10 is arranged in the first through hole 121 and the second through hole 212, and the push rod 10 abuts against the limiting piece 3 and the base 4, the armature 20 is located in the first accommodating cavity 111 and the second accommodating cavity 211, and the second riveting assembly 2 and the first riveting assembly 1 can be close to each other to extrude the armature 20 and the push rod 10 for riveting.

[0038] Since the push rod 10 abuts against the base 4 and the limiting piece 3, the position of the base 4 relative to the second riveting assembly 2 in the axial direction can be adjusted to adapt to push rods 10 of different lengths, ensuring smooth riveting of the push rod 10 and the armature 20, and improving the versatility of the armature push rod assembly riveting device.

[0039] In some embodiments, the first riveting assembly 1 comprises a first holder 11 and a first pressure head 12. The first holder 11 has a first accommodating cavity 111 and a first positioning groove. The first pressure head 12 is arranged in the first accommodating cavity 111. The first pressure head 12 has a first through hole 121. The first pressure head 12 can abut against one end of the armature 20. The limiting piece 3 is arranged in the first positioning groove. The above arrangement facilitates the installation of the limiting piece 3 and can limit the position of the limiting piece 3 relative to the first holder 11 in the axial direction. The first through hole 121 can limit the push rod 10 in the radial direction. During riveting, the riveting equipment drives the relative movement of the first riveting assembly 1 and the second riveting assembly 2. The first pressure head 12 acts on the end of the armature 20, causing the armature 20 to deform and thereby realize riveting with the push rod 10.

[0040] In some embodiments, the first pressing head 12 is provided with a first mounting hole, the first retainer 11 is provided with a second mounting hole opposite to the first mounting hole, and the screw 13 is connected through the second mounting hole and the first mounting hole. Since the first pressing head 12 is a consumable part, it is easy to wear and deform during long-term riveting. By mounting the first pressing head 12 on the first retainer 11 through the screw 13, the detachable connection of the first pressing head 12 is realized. By designing the first pressing head 12 and the first retainer 11 as a split structure, the first pressing head 12 can be quickly replaced when it is worn, and the first retainer 11 can be reused. Moreover, during the manufacturing of the first pressing head 12, the first pressing head 12 can be easily machined and heat treated.

[0041] In some embodiments, a plurality of riveting portions 122 are arranged on the circumference of the first pressing head 12 and spaced apart from the end of the first pressing head 12 towards the armature 20. In this embodiment, three riveting portions 122 are integrally formed on the first pressing head 12. During the riveting of the push rod 10 and the armature 20, since the push rod 10 is provided with an annular clamping groove at the end of the armature 20 towards the first pressing head 12, when the riveting portion 122 is deformed by extruding the end of the armature 20, a riveting groove is formed on the armature 20, and the end of the armature 20 is deformed and pressed into the annular clamping groove, thereby realizing the riveting and fixing of the armature 20 and the push rod 10.

[0042] In some embodiments, the armature push rod assembly riveting device further comprises a compression elastic member 5, the end of the limiting member 3 away from the second riveting assembly 2 is provided with a second mounting groove, one end of the compression elastic member 5 is located in the second mounting groove, and the compression elastic member 5 abuts against the groove bottom of the second mounting groove. Specifically, the compression elastic member 5 is a compression spring. When the first retainer 11 is installed on the riveting equipment, the compression elastic member 5 is in a compressed state, so that the elastic force acts on the limiting member 3. The compression elastic member 5 and the limiting member 3 act as a pre-tightening device for the push rod 10. During the displacement of the first riveting assembly 1 to the second riveting assembly 2, the limiting member 3 always has a pressure effect on the push rod 10, so that the other end of the push rod 10 is always in contact with the base 4 and cannot be separated. While the push rod 10 has a certain degree of freedom in the axial direction, the relative dimensional accuracy of the push rod 10 and the armature 20 is ensured.

[0043] In some embodiments, the second riveting assembly 2 comprises a second holder 21 and a second pressure head 22, the second holder 21 is provided with a second accommodating cavity 211, the second pressure head 22 is arranged in the second accommodating cavity 211, and a second through hole 212 is arranged in the second pressure head 22 and the second holder 21. Specifically, in the present embodiment, the second pressure head 22 is in an integrated structure with the second holder 21, so as to ensure the connection strength of the second pressure head 22 and the second holder 21. By arranging the second through hole 212 in the second pressure head 22 and the second holder 21, the push rod 10 can be positioned, and when the push rod 10 abuts against the base 4 and the limiting piece 3, the position of the push rod 10 in the radial direction can be limited, so as to prevent the push rod 10 from moving in the radial direction.

[0044] In some embodiments, the second pressure head 22 has a ring-shaped riveting portion 221 at one end thereof which faces the first riveting assembly 1. When the armature 20 and the push rod 10 are riveted, the ring-shaped riveting portion 221 extrudes the armature 20 to deform, so as to process a ring-shaped groove on the armature 20, and the armature 20 is stably connected with the push rod 10. In the present embodiment, the ring-shaped riveting portion 221 has a certain taper, so as to stably connect the armature 20 and the push rod 10 after riveting.

[0045] In some embodiments, the second holder 21 is coaxially provided with a butt joint guide portion at one end thereof which faces the first riveting assembly 1, and the butt joint guide portion can be inserted into the first accommodating cavity 111. Specifically, the second holder 21 is integrally formed with the butt joint guide portion. By arranging the butt joint guide portion, when the first holder 11 and the second holder 21 move towards each other, the butt joint guide portion can ensure that the first holder 11 and the second holder 21 are smoothly butted. When the butt joint guide portion is inserted into the first holder 11, until the end faces of the first holder 11 and the second holder 21 abut against each other, riveting is completed.

[0046] In some embodiments, a threaded hole is arranged at one end of the second holder 21 which is away from the first riveting assembly 1, and the base 4 is screwed with the threaded hole. By screwing the base 4 with the second holder 21, the installation and dismounting of the base 4 are facilitated, and the position of the base 4 in the axial direction relative to the second holder 21 can be adjusted by adjusting the screwing depth of the base 4.

[0047] In some embodiments, the armature and push rod assembly riveting device further comprises an adjusting gasket 6, and the adjusting gasket 6 is sleeved on the base 4. Specifically, a mounting ring groove is arranged on the base 4, and the adjusting gasket 6 is sleeved in the mounting ring groove. By controlling the thickness of the adjusting gasket 6, the position of the base 4 in the axial direction relative to the second holder 21 can be controlled, so as to flexibly meet the fixation of push rods 10 with different lengths.

[0048] The riveting process of the armature 20 and the push rod 10 is as follows:

[0049] After each part is assembled in place, the riveting device simultaneously applies force to the first retainer 11 and the second retainer 21. The three-point riveting portion 122 of the first pressing head 12 protrudes and presses the material on the upper end surface of the armature 20 into the annular clamping groove of the push rod 10, while the annular riveting portion 221 of the second pressing head 22 extrudes the material on the lower end surface of the armature 20 to the surface of the push rod 10, so that the inner diameter of the central hole of the armature 20 is reduced. When the first retainer 11 and the second retainer 21 are in contact with the end surfaces, the depth of the indentation of the first pressing head 12 and the second pressing head 22 on the armature 20 is also extruded to the designed size, realizing the axial positioning assembly of the armature 20 and the push rod 10. The simultaneous extrusion of the first pressing head 12 and the second pressing head 22 can ensure the assembly strength of the armature 20 and the push rod 10, so that the two parts are not easily separated, ensuring the assembly quality.

[0050] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not a limitation on the embodiments of the utility model. For ordinary skilled in the art, on the basis of the above description, other different forms of changes or variations can be made. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model claims.

Claims

1. A press riveter for an armature push rod assembly, characterized by, The utility model relates to a push rod assembly compression riveting device, including: A first riveting assembly (1) has a first through hole (121) and a first accommodating cavity (111) arranged coaxially and communicated with each other; A limiting piece (3) is arranged in the first riveting assembly (1); A second riveting assembly (2) is arranged coaxially with the first riveting assembly (1) and has a second through hole (212) and a second accommodating cavity (211) arranged coaxially and communicated with each other; A base (4) is arranged at one end of the second riveting assembly (2) away from the first riveting assembly (1), and the position of the base (4) relative to the second riveting assembly (2) in the axial direction can be adjusted; The push rod (10) is arranged in the first through hole (121) and the second through hole (212) and abuts against the limiting piece (3) and the base (4), the armature (20) is arranged in the first accommodating cavity (111) and the second accommodating cavity (211), and the second riveting assembly (2) can be close to the first riveting assembly (1) to press the armature (20) and the push rod (10) to be riveted.

2. The armature push rod assembly press riveter of claim 1, wherein, The first riveting assembly (1) includes a first retainer (11) having the first accommodating cavity (111) and a first positioning groove and a first pressure head (12) arranged in the first accommodating cavity (111), the first pressure head (12) is provided with the first through hole (121), the first pressure head (12) can abut against one end of the armature (20), and the limiting piece (3) is arranged in the first positioning groove.

3. The armature push rod assembly press riveter of claim 2, wherein, The first pressure head (12) is provided with a first mounting hole, the first retainer (11) is provided with a second mounting hole opposite to the first mounting hole, and a screw (13) is connected through the second mounting hole and the first mounting hole.

4. The armature push rod assembly press riveter of claim 2, wherein, A plurality of riveting portions (122) are arranged at intervals along the circumference of the first pressure head (12) and towards one end of the first pressure head (12) facing the armature (20).

5. The armature push rod assembly press riveter of claim 1, wherein, Further comprising a compression elastic member (5), one end of the compression elastic member (5) is arranged in a second mounting groove arranged at one end of the limiting piece (3) away from the second riveting assembly (2), and the compression elastic member (5) abuts against the groove bottom of the second mounting groove.

6. The armature push rod assembly press riveter of claim 1, wherein, The second riveting assembly (2) includes a second retainer (21) provided with the second accommodating cavity (211) and a second pressure head (22) arranged in the second accommodating cavity (211), and the second through hole (212) is arranged in the second pressure head (22) and the second retainer (21).

7. The armature push rod assembly press riveter of claim 6, wherein, One end of the second pressure head (22) facing the first riveting assembly (1) has an annular riveting portion (221).

8. The armature push rod assembly press riveter of claim 6, wherein, One end of the second retainer (21) facing the first riveting assembly (1) is coaxially provided with a butt joint guide portion, and the butt joint guide portion can be inserted into the first accommodating cavity (111).

9. The armature push rod assembly press riveter of claim 6, wherein, The second retainer (21) is provided with a threaded hole at one end away from the first riveting assembly (1), and the base (4) is screwed with the threaded hole.

10. The armature push rod assembly press riveter of claim 1, wherein, An adjusting gasket (6) is further included, which is sleeved on the base (4).

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