A return spring mechanism

Abstract

The utility model belongs to the automobile workpiece processing technical field especially is a return type spring mechanism, including first connecting seat and connecting baffle, one side fixed connection of first connecting seat has reset spring, and the inside of reset spring is equipped with limit component, limit component includes first limit rod and second limit rod, and one end of second limit rod is slidably connected in the inside of first limit rod, the inside of first limit rod is equipped with first installation groove and second installation groove, and second limit rod is slidably connected in the inside of second installation groove, can provide sufficient initial force and resilience for reset spring, make up the insufficient resilience condition when appearing through single reset spring as elastic workpiece, can assist reset spring to carry out fast reset simultaneously, can effectively improve the working efficiency of mechanism, can make the resilience of whole mechanism more stable, help to improve product processing precision.

Description

Technical Field

[0001] This utility model belongs to the field of automotive workpiece processing technology, specifically relating to a return spring mechanism. Background Technology

[0002] In automotive mold production, nitrogen springs are elastic elements powered by high-pressure nitrogen gas. Their function is integrated throughout key processes such as stamping and forming, providing strong elastic force to meet the requirements of precision stamping. However, this also increases the cost of mold production. Although ordinary spring structures are currently used to replace nitrogen springs in the production process, during use, wobbling often occurs when the spring is deformed. There may also be problems such as insufficient elasticity of a single spring component and slow return, which can adversely affect the processing of the product. Utility Model Content

[0003] This utility model provides a return spring mechanism that can provide sufficient initial force and rebound force for the return spring, making up for the insufficient elastic force when using a single return spring as an elastic workpiece. At the same time, it can assist the return spring to quickly reset, effectively improving the working efficiency of the mechanism, making the elastic force of the entire mechanism more stable, and helping to improve the product processing accuracy.

[0004] This utility model provides the following technical solution: a return spring mechanism, including a first connecting seat and a connecting baffle. A return spring is fixedly connected to one side of the first connecting seat, and a limiting component is provided inside the return spring. The limiting component includes a first limiting rod and a second limiting rod, and one end of the second limiting rod is slidably connected to the inside of the first limiting rod. A first mounting groove and a second mounting groove are opened inside the first limiting rod, and the second limiting rod is slidably connected to the inside of the second mounting groove. A third mounting groove is opened inside the second limiting rod, and a fixed magnet is fixedly connected to one end of the inner cavity of the third mounting groove. An electromagnet is fixedly connected to one end of the inner cavity of the first mounting groove.

[0005] The connecting baffle has an installation clearance groove on one side.

[0006] The mounting clearance groove is provided with a second connecting seat.

[0007] The second connecting seat is threaded with a fixing bolt, and the second connecting seat is fixedly connected to the end of the second limiting rod through the fixing bolt.

[0008] One end of the second limiting rod is fixedly connected to a buffer pad.

[0009] One end of the electromagnet is fixedly connected to a connecting wire, and one end of the connecting wire extends to the outside of the first connecting base.

[0010] The second limiting rod is fitted with a connecting mounting base, and one end of the reset spring is fixedly connected to one side of the connecting mounting base.

[0011] The beneficial effects of this invention are as follows: With the cooperation of the electromagnet and the fixed magnet, sufficient initial force and rebound force can be provided to the return spring when it undergoes tensile and compressive deformation, which can compensate for the insufficient elastic force when the return spring is used as a single elastic workpiece. At the same time, it can assist the return spring to perform rapid reset, which can effectively improve the working efficiency of the mechanism and meet some working conditions with high requirements for reset speed. Moreover, when the return spring experiences elastic force decay or instability after long-term use, the electromagnet and the fixed magnet can maintain relative stability through the control of electromagnetic force, which can make the elastic force of the entire mechanism more stable and help improve the product processing accuracy.

[0012] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the return spring mechanism of this utility model;

[0014] Figure 2 This is a schematic diagram of the front cross-sectional structure of the return spring mechanism of this utility model;

[0015] Figure 3 This utility model Figure 2 A schematic diagram of the front cross-sectional structure after the second connecting seat has been moved;

[0016] Figure 4 This utility model Figure 2 Enlarged diagram showing details of section A.

[0017] In the diagram: 1. First connecting seat; 2. Connecting baffle; 21. Mounting clearance groove; 22. Second connecting seat; 23. Fixing bolt; 3. Return spring; 31. Connecting mounting seat; 4. Limiting assembly; 41. First limiting rod; 411. First mounting groove; 412. Second mounting groove; 42. Second limiting rod; 421. Third mounting groove; 43. Electromagnet; 431. Connecting wire; 44. Fixing magnet; 45. Buffer pad. Detailed Implementation

[0018] Please see Figure 1 - Figure 4The present invention provides the following technical solution: a return spring mechanism, including a first connecting seat 1 and a connecting baffle 2, a return spring 3 is fixedly connected to one side of the first connecting seat 1, and a limiting component 4 is provided inside the return spring 3. The limiting component 4 includes a first limiting rod 41 and a second limiting rod 42, and one end of the second limiting rod 42 is slidably connected to the inside of the first limiting rod 41. The inside of the first limiting rod 41 is provided with a first mounting groove 411 and a second mounting groove 412, and the second limiting rod 42 is slidably connected to the inside of the second mounting groove 412. The inside of the second limiting rod 42 is provided with a third mounting groove 421, a fixing magnet 44 is fixedly connected to one end of the inner cavity of the third mounting groove 421, and an electromagnet 43 is fixedly connected to one end of the inner cavity of the first mounting groove 411.

[0019] In this embodiment: the first connecting seat 1 is used to install with a mold base of the mold, and at the same time, it is used to provide a carrier for connecting the return spring 3. The return spring 3 is the elastic component in the whole spring mechanism, which is used to provide the initial force and return force for the whole spring mechanism. The limiting component 4 located inside the return spring 3 is used to limit the deformation path of the return spring 3 when it undergoes elastic expansion and contraction deformation, so that the return spring 3 can undergo horizontal compression deformation when it deforms, and avoid the return spring 3 from shaking when it deforms.

[0020] The first limiting rod 41 and the second limiting rod 42 in the limiting assembly 4 form an outer shell, constituting a limiting element for the return spring 3 when it deforms. They also provide installation space for the electromagnet 43 and the fixed magnet 44, and provide external isolation and protection for the fixed magnet 44 and the electromagnet 43, preventing adverse effects on external electronic equipment. Furthermore, they prevent the electromagnet 43 and the fixed magnet 44 from being affected by the external environment. With the cooperation of the electromagnet 43 and the fixed magnet 44, sufficient initial force and restoring force are provided to the return spring 3 when it undergoes tensile and compressive deformation. This mechanism compensates for insufficient elasticity when using a single return spring 3 as the elastic workpiece. Furthermore, the cooperation between the electromagnet 43 and the fixed magnet 44 allows the return spring 3 to quickly reset using the magnetic attraction and repulsion forces generated between them. This effectively improves the mechanism's efficiency, meeting the needs of applications requiring high reset speeds. Moreover, if the return spring 3 experiences elasticity decay or instability after prolonged use, the electromagnet 43 and the fixed magnet 44 can maintain relative stability through electromagnetic force, making the overall elasticity of the mechanism more stable and contributing to improved product machining accuracy.

[0021] The connecting baffle 2 located on one side of the first connecting seat 1 is a protective component in the entire spring mechanism. The first mounting groove 411 is used to provide space for the electromagnet 43 to be installed, the second mounting groove 412 is used to provide space for the second limiting rod 42 to be connected, and the third mounting groove 421 opened in the second limiting rod 42 is used to provide space for the fixed magnet 44 to be installed.

[0022] A mounting clearance groove 21 is provided on one side of the connecting baffle 2; wherein, the mounting clearance groove 21 is used to provide space for the second connecting seat 22 to be installed.

[0023] The mounting clearance groove 21 is provided with a second connecting seat 22; the second connecting seat 22 is used to install with another mold base on the mold. In use, the first connecting seat 1 and the second connecting seat 22 are installed on the two mold bases on the mold respectively.

[0024] The second connecting seat 22 is threaded with a fixing bolt 23, and the second connecting seat 22 is fixedly connected to the end of the second limiting rod 42 by the fixing bolt 23; wherein the fixing bolt 23 is a connecting piece used to provide a connection between the second connecting seat 22 and the second limiting rod 42.

[0025] One end of the second limiting rod 42 is fixedly connected to a buffer pad 45; the buffer pad 45 plays a role in buffering and protection.

[0026] One end of the electromagnet 43 is fixedly connected to a connecting line 431, and one end of the connecting line 431 extends to the outside of the first connecting seat 1; wherein the connecting line 431 is used to provide a carrier for communication between the electromagnet 43 and an external power source.

[0027] The second limiting rod 42 is fitted with a connecting mounting base 31, and one end of the return spring 3 is fixedly connected to one side of the connecting mounting base 31; wherein the connecting mounting base 31 is used to connect one end of the return spring 3 to the limiting component 4.

[0028] The working principle and usage process of this utility model are as follows: In use, the first connecting seat 1 and the second connecting seat 22 are first installed on two mold bases on the mold, and the connecting baffle 2 is fixedly connected to the output end of the driver. When the connecting baffle 2 is displaced under the drive of the driver, the connecting baffle 2 can drive the second connecting seat 22 to move synchronously. After the second connecting seat 22 is displaced, one end of the return spring 3 is stretched and deformed. In this state, the magnetic poles of the opposite surfaces of the electromagnet 43 and the fixed magnet 44 are the same. At this time, the electromagnet 43 and the fixed magnet 44 move in opposite directions under the action of magnetic repulsion, which can cause the return spring 3 to undergo tensile deformation. When the second connecting seat 22 slides towards the first connecting seat 1, the magnetic poles of the electromagnet 43 change. At this time, the magnetic poles of the electromagnet 43 and the fixed magnet 44 are opposite. Under the action of magnetic attraction, the electromagnet 43 and the fixed magnet 44 move towards each other, which can assist the rapid reset of the return spring 3. In addition, the magnetic poles of the electromagnet 43 can be adjusted by adjusting the direction of the internal current of the electromagnet 43 during operation. During installation, the connecting wire 431 is connected to an external digital control such as a PLC controller, and the operation of the external drive and the electromagnet 43 is coordinated by the PLC.

Claims

1. A return spring mechanism, comprising a first connecting seat (1) and a connecting baffle (2), characterized in that: A reset spring (3) is fixedly connected to one side of the first connecting seat (1), and a limiting component (4) is provided inside the reset spring (3). The limiting component (4) includes a first limiting rod (41) and a second limiting rod (42). One end of the second limiting rod (42) is slidably connected to the inside of the first limiting rod (41). A first mounting groove (411) and a second mounting groove (412) are provided inside the first limiting rod (41). The second limiting rod (42) is slidably connected to the inside of the second mounting groove (412). A third mounting groove (421) is provided inside the second limiting rod (42). A fixed magnet (44) is fixedly connected to one end of the inner cavity of the third mounting groove (421), and an electromagnet (43) is fixedly connected to one end of the inner cavity of the first mounting groove (411).

2. The return spring mechanism according to claim 1, characterized in that: The connecting baffle (2) has an installation clearance groove (21) on one side.

3. The return spring mechanism according to claim 2, characterized in that: The mounting clearance groove (21) is provided with a second connecting seat (22).

4. A return spring mechanism according to claim 3, characterized in that: The second connecting seat (22) is threaded with a fixing bolt (23), and the second connecting seat (22) is fixedly connected to the end of the second limiting rod (42) through the fixing bolt (23).

5. A return spring mechanism according to claim 1, characterized in that: A buffer pad (45) is fixedly connected to one end of the second limiting rod (42).

6. A return spring mechanism according to claim 1, characterized in that: One end of the electromagnet (43) is fixedly connected to a connecting line (431), and one end of the connecting line (431) extends to the outside of the first connecting seat (1).

7. A return spring mechanism according to claim 1, characterized in that: The second limiting rod (42) is fitted with a connecting mounting base (31), and one end of the reset spring (3) is fixedly connected to one side of the connecting mounting base (31).

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