Relay iron core twisting and riveting mechanism

Abstract

The utility model relates to the technical field of relay production, in particular to a relay iron core twisting and riveting mechanism, which comprises a support with an n-shaped structure, a riveting driving source is arranged above the support, a movable end of the riveting driving source is connected with a lifting platform, the support is provided with a die assembly below the lifting platform, and the die assembly comprises a lower die capable of stably moving up and down. The lower die is provided with a tool jig, the tool jig is provided with a tool groove used for placing a relay iron core to be riveted, the lower die is provided with positioning pieces arranged in groups on the periphery of the tool groove, the positioning pieces can transversely limit the relay iron core in the tool groove, and the die assembling assembly further comprises an upper die arranged at the bottom of the lifting table. A riveting head is arranged at the bottom of the upper die, and the upper die can move downwards along with the lifting table to form a riveting mechanism with the lower die. The utility model is favorable for solving the problems that the mechanical failure risk is relatively high and the subsequent maintenance operation is inconvenient because some devices adopt built-in complex riveting transmission structures at present.

Description

Technical Field

[0001] This utility model relates to the field of relay manufacturing technology, and in particular to a relay core stranding and riveting mechanism. Background Technology

[0002] As an electronic control device, a relay is commonly used in automatic control circuits. It is essentially an "automatic switch" that uses a smaller current to control a larger current, playing roles such as automatic adjustment, safety protection, and circuit switching in the circuit.

[0003] In relay production, it is necessary to rivet the iron cores into a single unit. CN216624106U discloses a relay upper and lower iron core twisting and riveting mechanism, including a base. This mechanism further includes: a clamping mechanism disposed on the base to protect one end of the iron core; a riveting mechanism movably disposed on the base to load the relay product and rivet it into shape; and a first power source disposed on the base, which drives the riveting mechanism to reciprocate. This invention replaces the traditional manual operation method, realizing automated production, reducing the labor intensity of workers, improving production efficiency, and producing products with consistent standards and a high pass rate. It further improves enterprise production efficiency and reduces enterprise production costs; it is convenient to operate and safe and reliable.

[0004] However, the above technical solution uses a top clamping mechanism and a positioning mechanism on one side to constrain the iron core. The riveting mechanism is located at the bottom and requires a complex riveting transmission structure consisting of a drive cylinder, swing rod, pressure roller, lifting block, and lower riveting pin to achieve the riveting operation. This method has a relatively bulky structure, a relatively high risk of mechanical failure, and the built-in transmission structure makes subsequent maintenance inconvenient. Utility Model Content

[0005] This invention provides a relay core stranding and riveting mechanism, which helps to solve the problem that some devices currently use built-in complex riveting transmission structures, resulting in a relatively high risk of mechanical failure and inconvenience for subsequent maintenance operations.

[0006] This utility model is implemented as follows:

[0007] A relay core twisting and riveting mechanism includes an n-shaped support, an upper plate spaced above the support, a riveting drive source at the top of the upper plate, the riveting drive source having a movable end capable of moving vertically downwards, a lifting platform connected to the bottom of the movable end, a mold closing assembly located below the support and the mold closing assembly including a lower mold capable of stable up-and-down movement, a tooling fixture on the lower mold, a tooling slot for placing the relay core to be riveted, a group of positioning elements around the lower mold surrounding the tooling slot, the positioning elements being able to laterally limit the relay core located in the tooling slot, a lower ejector pin below the tooling slot, the lower ejector pin being able to penetrate from bottom to top into the tooling slot after the lower mold moves downwards, the mold closing assembly also includes an upper mold located at the bottom of the lifting platform, the bottom of the upper mold having a riveting head, the upper mold being able to follow the lifting platform downwards and form a riveting mechanism with the lower mold.

[0008] Based on the above technical solution, the support is provided with a support plate structure directly below the mold closing assembly.

[0009] Based on the above technical solution, the bottom of the upper plate is connected to the top of the support by four vertical support rods, and the inner side of the support rods forms a riveting space that can accommodate the lifting platform and the mold closing assembly.

[0010] Based on the above technical solution, the top end face of the support is provided with an installation groove at the center of the riveting space, and a positioning plate is provided on one side of the installation groove. The positioning plate is fixed on the side wall of the support, and the installation groove is used to install the mold closing assembly.

[0011] Based on the above technical solution, the mold clamping assembly includes a base connected in the mounting groove, a lower ejector pin fixed to the top of the base, a number of vertically arranged lifting guide rods on the top of the base, a lower mold slidably mounted on the lifting guide rods, and an elastic support structure between the lower mold and the base.

[0012] Based on the above technical solution, the tooling fixture is detachably mounted on the top of the lower mold.

[0013] Based on the above technical solution, the upper mold is provided with support feet around its bottom, which can hold the lower mold down after it moves downward.

[0014] Based on the above technical solution, a positioning insertion structure is provided between the tooling fixture and the upper mold. The positioning insertion structure includes a positioning pin provided on the tooling fixture and a positioning hole provided at the bottom of the lower mold.

[0015] Based on the above technical solution, a guide structure and a travel limit structure are provided between the lifting platform and the support.

[0016] Compared with the prior art, the present invention has at least the following advantages:

[0017] 1. The relay core stranding and riveting mechanism of this utility model is composed of an n-shaped support, an upper plate, a lifting platform, and other components. The structure is simple and clear, and it is easy to manufacture and install.

[0018] 2. This utility model uses a riveting drive source to drive the lifting platform to move up and down, thereby realizing the riveting operation. The structure is stable and reliable, and can ensure the accuracy and stability of the riveting process.

[0019] 3. The mold clamping assembly of this utility model adopts a modular design, and the tooling fixture is detachably set on the top of the lower mold for easy replacement and maintenance. At the same time, the guide structure and stroke limit structure between the lifting platform and the support are also easy to inspect and adjust.

[0020] 4. The relay core stranding and riveting mechanism of this utility model can realize automated production, improve production efficiency, and reduce the labor intensity of workers.

[0021] 5. This mechanism is suitable for the stranding and riveting of relay cores of different specifications and models, and has high versatility and flexibility. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the relay core stranding and riveting mechanism in one embodiment;

[0024] Figure 2 for Figure 1 Schematic diagram of the structure of the middle support and riveting drive source;

[0025] Figure 3 for Figure 1 Schematic diagram of the structure of the central mold assembly;

[0026] Figure 4 for Figure 3 Schematic diagram of the top structure of the upper and middle mold;

[0027] Figure 5 for Figure 3 Schematic diagram of the structure of the tooling fixture;

[0028] Figure 6 This is a structural schematic diagram of the first positioning component;

[0029] Figure 7 This is a schematic diagram of the second positioning component.

[0030] The diagram is labeled as follows: 100, support; 110, upper plate; 120, support rod; 130, middle support plate; 140, mounting slot; 150, positioning plate; 160, slide rail bracket; 200, riveting drive source; 210, lifting platform; 220, first guide rod; 300, mold closing assembly; 310, base; 311, lower ejector pin; 312, second guide rod; 320, lower mold; 333, tooling fixture; 331. Base plate; 332, tooling block; 333, positioning pin; 340, tooling slot; 350, first positioning component; 351, first positioning block; 352, first positioning drive source; 353, first mounting base; 360, second positioning component; 361, second positioning block; 362, second positioning drive source; 363, second mounting base; 370, upper mold; 371, support leg; 372, rivet head; 373, positioning hole. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model 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 utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0032] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0034] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0035] Combination Figure 1-7 This embodiment discloses a relay core stranding and riveting mechanism. The mechanism has a simple structure, is stable and reliable, and can efficiently complete the stranding and riveting operation of the relay core, while reducing the risk of mechanical failure and facilitating subsequent maintenance operations.

[0036] Specifically, the relay core stranding and riveting mechanism includes an n-shaped support 100, which serves as the main support structure. An upper plate 110 is spaced above the support 100. The upper plate 110 is a horizontal plate structure. The bottom of the upper plate 110 is connected to the top of the support 100 by four vertical support rods 120. The inner side of the support rods 120 forms a riveting space capable of accommodating the lifting platform 210 and the mold clamping assembly 300.

[0037] The top of the upper plate 110 is provided with a riveting drive source 200. The riveting drive source 200 is specifically a booster cylinder. The riveting drive source 200 has a movable end that can move vertically downward, that is, a telescopic rod of the cylinder that is set vertically downward. The bottom of the movable end is connected to a lifting platform 210. The lifting platform 210 can be controlled by the riveting drive source 200 to perform linear up and down movements.

[0038] To make the movement path of the lifting platform 210 more stable, the lifting platform 210 is connected to four vertical first guide rods 220 through sliding bushings, and the bottom of the first guide rods 220 is fixed on the support 100.

[0039] Support 100 is located below lifting platform 210 and has mold closing assembly 300. Specifically, in conjunction with Figure 2 The support 100 has an installation groove 140 at the center of the riveting space on its top end face. A positioning plate 150 is provided on one side of the installation groove 140. The positioning plate 150 is fixed on the side wall of the support 100. The installation groove 140 is used to install the mold closing assembly 300.

[0040] The mold clamping assembly 300 includes a base 310 connected to the mounting groove 140. A vertical lower ejector pin 311 is fixed to the top of the base 310. The top of the base 310 also has four vertically arranged lifting guide rods, specifically... Figure 2 The second guide rod 312 is connected to the lower mold 320. The lower mold 320 can move stably up and down along the second guide rod 312. In order to make the lower mold 320 separate from the base 310 in a free state, an elastic support structure is provided between the lower mold 320 and the base 310. Specifically, a spring is sleeved on the second guide rod 312, which is not shown in the figure.

[0041] The lower mold 320 is provided with a tooling fixture 330, and the tooling fixture 330 is provided with a tooling slot 340 for placing the relay core to be riveted. Specifically, the assembly 3 and Figure 5The tooling fixture 330 is detachably mounted on the top of the lower mold 320. The tooling fixture 330 includes a base plate 331 connected to the lower mold 320. A tooling block 332 is bolted to the top of the base plate 331. A tooling groove 340 is located in the central area of ​​the tooling block 332. The base plate 331 is provided with a through hole at the position of the lower ejector pin 311 directly below the tooling groove 340. After the lower mold 320 moves down, the lower ejector pin 311 can pass through the through hole from bottom to top and penetrate into the tooling groove 340. Its function is to cooperate with the upper mold 370 to complete a precise riveting control structure.

[0042] Furthermore, the mold clamping assembly 300 also includes an upper mold 370 disposed at the bottom of the lifting platform 210. The bottom of the upper mold 370 is provided with a riveting head 372. The upper mold 370 can follow the lifting platform 210 downwards to form a riveting mechanism with the lower mold 320. The bottom of the upper mold 370 is provided with support legs 371 around its perimeter. After downwards, the support legs 371 can hold the lower mold 320, so that during riveting, the lower mold 320 can be driven to move downwards synchronously, thereby cooperating with the lower ejector pin 311 to complete the riveting action.

[0043] In order to ensure the accuracy of the riveting action, a positioning and insertion structure is provided between the tooling fixture 330 and the upper mold 370. The positioning and insertion structure includes a positioning pin 333 on the tooling fixture 330 and a positioning hole 373 at the bottom of the lower mold 320.

[0044] In order to ensure that the relay core can maintain a stable posture in the tooling slot 340, the lower die 320 is provided with a group of positioning components on the periphery of the tooling slot 340. The positioning components can laterally limit the relay core located in the tooling slot 340, and the positioning components can move synchronously with the lower die 320 during the riveting process to ensure the stability of the tooling during the riveting process.

[0045] Specifically, the positioning elements in this embodiment include a first positioning element 350 and a second positioning element 360, combined with... Figure 6 and Figure 7 The first positioning component 350 includes a first positioning block 351, with a first positioning drive source 352 connected to the outside of the first positioning block 351. The first positioning drive source 352 and the first positioning block 351 are connected to the lower mold 320 via a first mounting base 353 at the bottom. The second positioning component 360 includes a second positioning block 361, with a second positioning drive source 362 connected to the outside of the second positioning block 361. The second positioning drive source 362 and the second positioning block 361 are connected to the lower mold 320 via a second mounting base 363 at the bottom. Both the first positioning drive source 352 and the second positioning drive source 362 adopt a cylinder structure.

[0046] To ensure a more stable and reliable support effect for the riveting operation, the support 100 is provided with a support plate structure, specifically a central support plate 130, located directly below the mold clamping assembly 300. Figure 1 As shown.

[0047] To ensure stable riveting stroke, combined with Figure 2 The lifting platform 210 and the support 100 are provided with a travel limit structure, specifically a slide bracket 160 set on the support 100. When the lifting platform 210 descends to the threshold travel, the lifting platform 210 will be limited by the slide bracket 160 to avoid excessive riveting of the relay core.

[0048] In the specific implementation process, in conjunction with the external loading and unloading mechanism, the relay cores to be riveted are placed one by one into the tooling slot 340. The first positioning block 351 and the second positioning block 361 move inward to fix the cores on the tooling side. The riveting drive source 200 controls the lifting platform 210 to drive the upper mold 370 to move down synchronously. After moving down, the riveting head 372 first contacts the top of the lower core, which provides appropriate pre-tightening constraint. Then, the support leg 371 of the upper mold 370 contacts the lower mold 320 and drives the lower mold 320, tooling fixture 330 and cores to move down synchronously. During this process, the riveting head 372 works with the lower ejector pin 311 to complete the riveting operation on the cores.

[0049] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this 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 of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A relay core twisting, riveting and pressing mechanism, characterized by, The support (100) includes an n-shaped structure, an upper plate (110) is arranged above the support (100) in a spaced manner, a riveting driving source (200) is arranged at the top of the upper plate (110), the riveting driving source (200) has a movable end capable of moving vertically downward, a lifting platform (210) is connected to the bottom of the movable end, a mold closing assembly (300) is arranged below the support (100), the mold closing assembly (300) includes a lower mold (320) capable of moving up and down stably, a tool jig (330) is arranged on the lower mold (320), a tool groove (340) for placing a relay core to be riveted is arranged on the tool jig (330), a plurality of positioning members are arranged around the tool groove (340) on the lower mold (320), the positioning members can limit the relay core in the tool groove (340) in the transverse direction, a lower ejector pin (311) is arranged below the tool groove (340), the lower ejector pin (311) can penetrate into the tool groove (340) from bottom to top after the lower mold (320) moves downward, the mold closing assembly (300) further includes an upper mold (370) arranged at the bottom of the lifting platform (210), a riveting head (372) is arranged at the bottom of the upper mold (370), and the upper mold (370) can move downward with the lifting platform (210) to form a riveting mechanism with the lower mold (320).

2. The mechanism according to claim 1, wherein The support (100) is arranged below the mold closing assembly (300) and is provided with a support plate structure.

3. The mechanism according to claim 1, wherein The upper plate (110) is connected to the top of the support (100) through four vertical support rods (120) around the bottom of the upper plate (110), and the inside of the support rods (120) forms a riveting space capable of accommodating the lifting platform (210) and the mold closing assembly (300).

4. The mechanism according to claim 3, wherein An installation groove (140) is arranged at the center of the top end face of the support (100), a positioning plate (150) is arranged on one side of the installation groove (140), the positioning plate (150) is fixedly arranged on the side wall of the support (100), and the installation groove (140) is used for installing the mold closing assembly (300).

5. The mechanism according to claim 4, wherein The mold closing assembly (300) includes a base (310) connected to the installation groove (140), the lower ejector pin (311) is fixedly arranged at the top of the base (310), a plurality of vertical lifting guide rods are further arranged at the top of the base (310), the lower mold (320) is slidably arranged on the lifting guide rods, and an elastic support structure is arranged between the lower mold (320) and the base (310).

6. The mechanism according to claim 5, wherein The tool jig (330) is detachably arranged at the top of the lower mold (320).

7. The mechanism according to claim 5, wherein The upper mold (370) is provided with supporting legs (371) around the bottom, and the supporting legs (371) can press and hold the lower mold (320) after moving downward.

8. The mechanism according to claim 1, wherein A positioning plug structure is arranged between the tool jig (330) and the upper mold (370), the positioning plug structure includes a positioning pin (333) arranged on the tool jig (330) and a positioning hole (373) arranged at the bottom of the lower mold (320).

9. The mechanism according to claim 1, wherein A guide structure and a stroke limiting structure are arranged between the lifting platform (210) and the support (100).

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