A contact assembly riveting device

Abstract

The application discloses a contact assembly riveting device, relates to the technical field of electromagnetic contactor assembly, and can improve the riveting efficiency and riveting quality of arc splitting contact assemblies to a certain extent. The contact assembly riveting device provided by the application comprises a lower riveting seat, the top of the lower riveting seat is provided with a riveting hole for fixing a contact assembly, a riveting column is fixedly connected with a supporting rod at one end, the supporting rod is used for extending into the riveting hole, and the outer diameter of the supporting rod is smaller than that of the riveting column, a pressing ring is slidably connected to the outer side of the supporting rod through a pin, and the outer diameter of the pressing ring is smaller than that of the riveting hole, a pressing spring is sleeved on the outer side of the supporting rod, one end of the pressing spring is in abutment with the riveting column, the other end of the pressing spring is in abutment with the pressing ring, the outer diameter of the pressing spring is smaller than or equal to that of the pressing ring, and when the pressing spring is in a natural elongation state, the end portion of the pressing ring protrudes from the end portion of the supporting rod; when the pressing spring is in a compressed state, the end portion of the pressing ring and the end portion of the supporting rod are located on the same plane.

Description

Technical Field

[0001] This application relates to the field of electromagnetic contactor assembly technology, and in particular to a contact assembly riveting device. Background Technology

[0002] Electromagnetic contactors are commonly used electrical control devices in industrial automation and power systems. An electromagnetic contactor consists of an arc-shaped contact assembly formed by two riveted spring contacts, also simply called a contact assembly. Its operating principle is based on electromagnetic induction and magnetic force. By controlling the opening and closing of its own electromagnetic coil, it achieves the switching of the contact assembly, thereby enabling the switching control of the circuit.

[0003] In the manufacturing of contact assemblies for electromagnetic contactors, workers need to manually rivet two springs together, which is inefficient and makes it difficult to guarantee the quality of the rivet joints. Utility Model Content

[0004] To improve the riveting efficiency and quality of contact assemblies in electromagnetic contactors, this application provides a contact assembly riveting device. The device involves placing the spring of the contact assembly into the riveting hole of the lower riveting base, and then using an external drive cylinder or linear motor to move the riveting post towards the lower riveting base. The retaining ring first contacts the spring of the contact assembly in the riveting hole; then the riveting post moves closer to the riveting hole, compressing the retaining spring and using the retaining ring to press the spring of the contact assembly. Finally, the support rod engages with the rivet of the contact assembly, driving the rivet to rivet the spring. This method improves the efficiency of contact assembly manufacturing while ensuring the riveting quality of the contact assembly.

[0005] The contact assembly riveting device provided in this application adopts the following technical solution: A contact assembly riveting device, comprising: The lower rivet base has a rivet hole on its top for fixing the contact assembly; A riveting post has a support rod fixedly connected to one end for extending into the riveting hole, and the outer diameter of the support rod is smaller than the outer diameter of the riveting post. A retaining ring is slidably connected to the outside of the support rod via a pin, and the outer diameter of the retaining ring is smaller than the outer diameter of the rivet hole; A retaining spring is sleeved on the outside of the support rod, with one end fitting against the rivet post and the other end fitting against the retaining ring. The outer diameter of the retaining spring is less than or equal to the outer diameter of the retaining ring. When the clamping spring is in its naturally extended state, the end of the clamping ring protrudes beyond the end of the support rod; when the clamping spring is in its compressed state, the end of the clamping ring and the end of the support rod are located on the same plane.

[0006] Optionally, the side wall of the abutment ring is provided with a through-hole, the long side of the through-hole is perpendicular to the length direction of the abutment ring, the pin is disposed in the through-hole, and the pin passes through the through-hole and is fixedly connected to the support rod.

[0007] Optionally, the length of the pin is greater than the outer diameter of the support rod, and the length of the pin is less than the inner diameter of the rivet hole.

[0008] Optional, also includes: The base is fixedly connected to the lower rivet seat, and the cross-sectional dimension of the base is larger than the end face dimension of the lower rivet seat.

[0009] Optionally, the base and the lower rivet are fixedly connected by welding.

[0010] Optionally, the base has at least two mounting holes, and the direction of the mounting holes is parallel to the direction of the riveting holes.

[0011] Optionally, the end of the retaining ring away from the retaining spring is provided with a plurality of protrusions at intervals.

[0012] Optionally, the end of the retaining ring near the retaining spring is provided with a connecting hole, the inner diameter of which is equal to the outer diameter of the retaining spring, and the inner diameter of the connecting hole is threaded.

[0013] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages: The contact assembly riveting device provided in this application places the spring of the contact assembly into the riveting hole of the lower riveting seat, and then uses an external drive cylinder or linear motor to drive the riveting column to move towards the lower riveting seat. The clamping ring first contacts the spring of the contact assembly in the riveting hole; then the riveting column moves closer to the riveting hole, the clamping spring is compressed, and the clamping ring presses the spring of the contact assembly. Finally, the support rod is attached to the rivet of the contact assembly and drives the rivet to rivet the spring. This device can improve the efficiency of contact assembly manufacturing and ensure the riveting quality of the contact assembly. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments of this application or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1This is a structural schematic diagram of a contact assembly riveting device according to this application.

[0016] Explanation of reference numerals in the attached drawings: 1. Lower rivet seat; 11. Riveting hole; 2. Riveting post; 3. Support rod; 4. Anchor ring; 41. Pin; 42. Oblong hole; 5. Anchor spring; 6. Base; 61. Mounting hole. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0018] In the description of the embodiments of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the embodiments of this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0019] like Figure 1 As shown, this application provides a contact assembly riveting device, which includes: The lower rivet base 1 has a rivet hole 11 on its top for fixing the contact assembly; The riveting post 2 has a support rod 3 fixedly connected to one end for extending into the riveting hole 11, and the outer diameter of the support rod 3 is smaller than the outer diameter of the riveting post 2. The retaining ring 4 is slidably connected to the outside of the support rod 3 by a pin 41, and the outer diameter of the retaining ring 4 is smaller than the outer diameter of the rivet hole 11; A retaining spring 5 is sleeved on the outside of the support rod 3, with one end attached to the riveting post 2 and the other end attached to the retaining ring 4. The outer diameter of the retaining spring 5 is less than or equal to the outer diameter of the retaining ring 4. When the clamping spring 5 is in its naturally extended state, the end of the clamping ring 4 protrudes beyond the end of the support rod 3; when the clamping spring 5 is in its compressed state, the end of the clamping ring 4 and the end of the support rod 3 are located on the same plane.

[0020] In some embodiments, the riveting post 2 can be connected to the piston rod of the drive cylinder or the moving shaft of the linear motor to achieve the purpose of the riveting post 2 moving toward the lower riveting seat 1. In this embodiment, the riveting post 2 is fixedly connected to the piston rod of the drive cylinder in the outside, and the riveting post 2 is located directly above the lower riveting seat 1.

[0021] For example, the clamping spring 5 can be implemented as a cylindrical spring, which can keep the clamping ring 4 protruding from the support rod 3 by itself, so that the clamping ring 4 can press the two spring pieces first, thereby avoiding displacement or sliding of the spring pieces. Furthermore, it reduces the impact when the support rod 3 drives the rivet to rivet the two spring pieces, ensuring the reliability of the support rod 3 driving the rivet to rivet the two spring pieces into a contact assembly.

[0022] This application provides a contact assembly riveting device. By placing the spring of the contact assembly into the riveting hole 11 of the lower riveting base 1, and then using an external drive cylinder or linear motor to drive the riveting post 2 towards the lower riveting base 1, the clamping ring 4 first contacts the spring of the contact assembly in the riveting hole 11; then the riveting post 2 further approaches the riveting hole 11, the clamping spring 5 is compressed, and the clamping ring 4 presses the spring of the contact assembly tightly. Finally, the support rod 3 is attached to the rivet of the contact assembly, and drives the rivet to rivet the spring. This can improve the efficiency of contact assembly manufacturing and ensure the riveting quality of the contact assembly. Compared with the traditional manual riveting method, the working efficiency of contact assembly riveting work using the contact assembly riveting device provided in this application embodiment can be increased by 3-5 times, and the pass rate of riveting quality is increased by more than 30%, reaching more than 95%.

[0023] In some embodiments, in order to facilitate limiting the sliding distance of the retaining ring 4 along the length direction of the support rod 3, the contact assembly riveting device provided in this application includes: an elongated hole 42 through which the retaining ring 4 is formed on the side wall, the long side of the elongated hole 42 being perpendicular to the length direction of the retaining ring 4, a pin 41 being disposed in the elongated hole 42, and the pin 41 passing through the elongated hole 42 and being fixedly connected to the support rod 3.

[0024] By opening an elongated hole 42 on the outer wall of the retaining ring 4 and using a pin 41 to slide within the elongated hole 42, the end face of the retaining ring 4 protrudes from or is flush with the end face of the support rod 3. This ensures the reliability of the movement of the retaining ring 4 and reduces the cost of maintaining the retaining ring 4.

[0025] In some embodiments, in order to improve the riveting quality of springs of different thicknesses, the contact assembly riveting device provided in this application includes: the length of the pin 41 is greater than the outer diameter of the support rod 3, and the length of the pin 41 is less than the inner diameter of the riveting hole 11.

[0026] By setting the length of the pin 41 between the outer diameter of the support rod 3 and the inner diameter of the rivet hole 11, it is possible to ensure that the pin 41 limits the position of the retaining ring 4, while also reducing the obstruction to the retaining ring 4 extending into the inner wall of the rivet hole 11.

[0027] In some embodiments, to improve the stability of the lower riveting seat 1, the contact gradual riveting device provided in this application further includes: The base 6 is fixedly connected to the lower riveting seat 1, and the cross-sectional dimension of the base 6 is larger than the end face dimension of the lower riveting seat 1.

[0028] By setting a base 6 for fixing the lower rivet 1, the lower rivet 1 is supported by the base 6 with a larger cross-sectional area, thereby greatly improving the stability of the lower rivet 1 and reducing the probability of the lower rivet 1 overturning during the riveting process.

[0029] For example, the base 6 and the lower rivet 1 are fixedly connected by welding.

[0030] Furthermore, in order to improve the convenience of fixing the lower rivet 1, the base 6 is provided with at least two mounting holes 61, and the opening direction of the mounting holes 61 is parallel to the opening direction of the riveting holes 11.

[0031] Workers can fix the base 6 by inserting bolts into the mounting hole 61, thereby further reducing the probability of the lower rivet 1 overturning.

[0032] In some embodiments, in a contact gradually riveting device provided in this application, the end of the retaining ring 4 away from the retaining spring 5 is provided with a plurality of protrusions at intervals.

[0033] By setting multiple protrusions at the end of the retaining ring 4, the roughness of the end face of the retaining ring 4 is improved, thereby reducing the probability of slippage when the retaining ring 4 contacts the spring.

[0034] Optionally, the end of the retaining ring 4 near the retaining spring 5 is provided with a connecting hole, the inner diameter of which is equal to the outer diameter of the retaining spring 5, and the inner diameter of the connecting hole is threaded.

[0035] By opening a connecting hole at the clamping ring 4 for connecting the clamping spring 5, the end of the clamping spring 5 can be inserted into the connecting hole and connected to the clamping ring 4 as one unit, thereby improving the safety of the operator during the replacement of the clamping ring 4 and avoiding the probability of the clamping ring 4 flying out and injuring people after the pin 41 is removed.

[0036] In the contact assembly riveting device provided in this application embodiment, the spring of the contact assembly is placed in the riveting hole 11 of the lower riveting seat 1, and then the riveting post 2 is driven to move toward the lower riveting seat 1 by an external driving cylinder or linear motor. The clamping ring 4 first contacts the spring of the contact assembly in the riveting hole 11; then the riveting post 2 moves closer to the riveting hole 11, the clamping spring 5 is compressed, and the clamping ring 4 is used to press the spring of the contact assembly. Finally, the support rod 3 is attached to the rivet of the contact assembly, and drives the rivet to rivet the spring. This can improve the efficiency of contact assembly manufacturing and ensure the riveting quality of the contact assembly.

[0037] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on its differences from other embodiments. The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit this application. Although this application 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; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of this application.

Claims

1. A contact assembly riveting apparatus, characterized by, include: The lower rivet base (1) has a rivet hole (11) on its top for fixing the contact assembly. The riveting post (2) has a support rod (3) fixedly connected to one end for extending into the riveting hole (11), and the outer diameter of the support rod (3) is smaller than the outer diameter of the riveting post (2). The abutment ring (4) is slidably connected to the outside of the support rod (3) by means of a pin (41), and the outer diameter of the abutment ring (4) is smaller than the outer diameter of the rivet hole (11); A retaining spring (5) is sleeved on the outside of the support rod (3), with one end attached to the rivet post (2) and the other end attached to the retaining ring (4). The outer diameter of the retaining spring (5) is less than or equal to the outer diameter of the retaining ring (4). When the clamping spring (5) is in its naturally extended state, the end of the clamping ring (4) protrudes beyond the end of the support rod (3); when the clamping spring (5) is in its compressed state, the end of the clamping ring (4) and the end of the support rod (3) are located on the same plane.

2. A contact assembly riveting device according to claim 1, wherein The side wall of the abutment ring (4) is provided with an elongated hole (42) that passes through it. The long side of the elongated hole (42) is perpendicular to the length direction of the abutment ring (4). The pin (41) is disposed in the elongated hole (42) and passes through the elongated hole (42) and is fixedly connected to the support rod (3).

3. A contact assembly riveting device as claimed in claim 1, wherein, The length of the pin (41) is greater than the outer diameter of the support rod (3), and the length of the pin (41) is less than the inner diameter of the rivet hole (11).

4. A contact assembly riveting device as claimed in claim 1, wherein, Also includes: The base (6) is fixedly connected to the lower riveting seat (1), and the cross-sectional dimension of the base (6) is larger than the end face dimension of the lower riveting seat (1).

5. A contact assembly riveting device as claimed in claim 4, wherein, The base (6) and the lower rivet (1) are fixedly connected by welding.

6. A contact assembly riveting device according to claim 4 or 5, wherein The base (6) has at least two mounting holes (61), and the mounting holes (61) are opened in a direction parallel to the opening direction of the riveting holes (11).

7. A contact assembly riveting device as claimed in claim 1, wherein, The end of the retaining ring (4) away from the retaining spring (5) is provided with a plurality of protrusions at intervals.

8. A contact assembly riveting device according to claim 7, wherein The end of the retaining ring (4) near the retaining spring (5) is also provided with a connecting hole. The inner diameter of the connecting hole is equal to the outer diameter of the retaining spring (5), and the inner diameter of the connecting hole is threaded.

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