Balance spring device

Abstract

The utility model provides a balance spring device, which comprises a fixed base plate arranged on an automatic upside-down mounting machine, a balance plate of which one side surface is rotatably connected with one side surface of the fixed base plate, and a gravity balance mechanism for connecting the fixed base plate and the balance plate, the gravity balance mechanism comprises a spring and a control assembly, the two ends of the spring are arranged on the top end face of the fixed base plate and the top end face of the balance plate through connecting assemblies correspondingly, and the control assembly is arranged on the connecting assemblies and controls the tension of the spring. An angle between the length direction of the spring and the top end surfaces of the fixed substrate and the balance plate is more than 0 degree and less than 90 degrees; according to the utility model, the gravity balance of the mounting bonding head can be conveniently adjusted, and the accuracy of controlling the moving position of the mounting bonding head is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of automatic inverted loading machine equipment, specifically a balance spring device. Background Technology

[0002] An automated die attach machine is a device used in the semiconductor and electronic component packaging process to precisely place chips (usually bare chips or wafers) onto a substrate or other packaging carrier. It is an indispensable piece of equipment in modern electronics manufacturing, especially in the production of integrated circuits (ICs) and other microelectronic components. Through a highly automated process, automated die attach machines enable chips to connect to the packaging substrate with extremely high precision and stability, ensuring high efficiency and high quality throughout the entire packaging process.

[0003] The balance spring device of the automatic inverting machine is an important component for balancing the weight. However, the current balance spring device has a complex structure, is inconvenient to adjust, has low control accuracy, and the weight control changes after a period of use. Therefore, the balance spring mechanism has been improved to improve the current situation. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a balancing spring device that can conveniently adjust the gravity balance of the mounting head, thereby improving the accuracy of controlling the movement position of the mounting head.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a balance spring device, comprising a fixed base plate mounted on an automatic flipping machine, a balance plate rotatably connected to one side of the fixed base plate, and a gravity balancing mechanism connecting the fixed base plate and the balance plate. A mounting head is mounted on the balance plate. The gravity balancing mechanism includes springs with their ends respectively connected to the top surfaces of the fixed base plate and the balance plate via connecting components, and a control component mounted on the connecting components to control the spring tension. When the top surfaces of the fixed base plate and the balance plate are coplanar, the angle between the length direction of the spring and the top surfaces of the fixed base plate and the balance plate is greater than 0 degrees and less than 90 degrees.

[0006] Preferably, the angle between the length direction of the spring and the top end face of the fixed base plate and the balance plate is 15° to 45°.

[0007] Preferably, the control component includes a first connecting rod and a second connecting rod respectively disposed on the fixed base plate and the balance plate via a connecting component, two connecting rings disposed on the ends of the spring and respectively sleeved on the first connecting rod and the second connecting rod, and a control component disposed on the fixed base plate via the connecting component and controlling the second connecting rod to move closer to or away from the first connecting rod, wherein the length directions of the first connecting rod and the second connecting rod are parallel.

[0008] Preferably, the control component includes a limiting block disposed above the fixed base plate via a connecting assembly, an adjusting screw that moves along the length of the spring through the limiting block, an adjusting sleeve that is threadedly sleeved onto the adjusting screw and has one end rotatably inserted into a rotating groove in the limiting block, and a fixing structure disposed on the limiting block to fix the position of the adjusting screw and the limiting block, wherein a second connecting rod is disposed on the end of the adjusting screw near the spring.

[0009] Preferably, the fixing structure includes a fixing post that can be threaded through the limiting block, and one end of the fixing post can abut against the adjusting screw sleeve inside the limiting block.

[0010] Preferably, the connecting assembly includes a first mounting block detachably mounted on the top end face of the fixed substrate, a second mounting block detachably mounted on the top end face of the balance plate, and a vertical rod fixedly disposed on the top end face of the first mounting block in a vertical direction, with the top of the vertical rod fixedly connected to the bottom side of the limiting block; a first connecting rod is disposed on the second mounting block.

[0011] The beneficial effects of this utility model are as follows: the fixed substrate is installed on the automatic flipping machine, the mounting head is fixed on the balance plate, and the tension of the spring is adjusted by the control component, which makes it easy to adjust the weight of the balance plate by adjusting the spring. The weight of the balance plate is controlled by the spring set at a certain angle, which improves the stability and accuracy of the balance plate control. The gravity balance of the mounting head can be easily adjusted, which improves the accuracy of controlling the movement position of the mounting head. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0013] Figure 1 This is a simplified structural diagram of the balance spring device proposed in this utility model.

[0014] Figure 2 This is a schematic diagram of the unfolded structure of the balance spring device proposed in this utility model.

[0015] Figure 3 This is a schematic diagram of the cross-sectional structure of the control component of this utility model.

[0016] In the diagram: 1. Fixed base plate; 2. Balance plate; 3. First mounting block; 4. Second mounting block; 5. Vertical rod; 6. Limiting block; 7. Protective cover; 8. Fixed column; 9. Adjusting screw sleeve; 10. Rotating ring; 11. Adjusting screw; 12. First connecting rod; 13. Spring; 14. Connecting groove; 15. Second connecting rod. Detailed Implementation

[0017] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are only preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the embodiments without creative effort are all within the protection scope of this utility model.

[0018] Please see Figure 1-3 A balancing spring device includes a fixed substrate 1 mounted on an automatic flipping machine, a balancing plate 2 whose side is rotatably connected to one side of the fixed substrate 1, and a gravity balancing mechanism connecting the fixed substrate 1 and the balancing plate 2. A mounting head is mounted on the balancing plate 2. The gravity balancing mechanism includes a spring 13 whose two ends are respectively set on the top surfaces of the fixed substrate 1 and the balancing plate 2 through connecting components, and a control component set on the connecting components to control the tension of the spring 13. When the top surfaces of the fixed substrate 1 and the balancing plate 2 are coplanar, the angle between the length direction of the spring 13 and the top surfaces of the fixed substrate 1 and the balancing plate 2 is greater than 0 degrees and less than 90 degrees.

[0019] like Figure 1-3 As shown, the fixed substrate 1 is mounted on the automatic flipping machine, and the balance plate 2 is provided with the mounting head. The tension of the spring 13 is adjusted by the control component to facilitate the control of the weight balance of the balance plate 2. The gravity balance of the mounting head can be easily adjusted, which improves the accuracy of controlling the movement position of the mounting head.

[0020] The primary function of the balance spring device is to reduce the load on the mounting head. By balancing the weight and inertia of the mounting head, the burden on the drive system is reduced, allowing the power unit to operate more efficiently and reducing energy consumption and mechanical wear.

[0021] Spring 13 helps the mounting head avoid errors caused by inertia during its up-and-down movement, ensuring positioning accuracy and pressure.

[0022] When the automatic flipping machine stops, spring 13 helps to counteract unnecessary vibrations, ensuring that the platform remains stably in the predetermined position and preventing the mounting head from shifting or malfunctioning due to unbalanced forces, which is especially important during precision assembly and welding processes.

[0023] During the long-term operation of the automatic inversion machine, spring 13 can provide continuous balance and support, avoid performance degradation due to component aging or external interference, and improve the overall stability of the system.

[0024] The angle between the length direction of the spring 13 and the top end face of the fixed base plate 1 and the balance plate 2 is 15° to 45°.

[0025] The control assembly includes a first connecting rod 12 and a second connecting rod 15 respectively mounted on the fixed base plate 1 and the balance plate 2 via a connecting assembly, two connecting rings mounted on the two ends of the spring 13 and respectively sleeved on the first connecting rod 12 and the second connecting rod 15, and a control component mounted on the fixed base plate 1 via a connecting assembly to control the second connecting rod 15 to move closer to or away from the first connecting rod 12. The length directions of the first connecting rod 12 and the second connecting rod 15 are parallel.

[0026] like Figure 2 As shown, the spring 13 is directly sleeved on the first connecting rod 12 and the second connecting rod 15 through the connecting rings at both ends. The spring 13, which is set on the fixed base plate 1 and the balance plate 2, facilitates the weight balance of the balance plate 2. The direct sleeve on the first connecting rod 12 and the second connecting rod 15 through the two connecting rings improves the efficiency of spring 13 installation and disassembly.

[0027] The fixed base plate 1 and the balance plate 2 are connected by a hinge.

[0028] The control components include a limiting block 6 mounted above the fixed base plate 1 via a connecting assembly, an adjusting screw 11 that moves along the length of the parallel spring 13 and passes through the limiting block 6, an adjusting screw sleeve 9 that is threadedly sleeved on the adjusting screw 11 and has one end rotatably passing through a rotating groove in the limiting block 6, and a fixing structure mounted on the limiting block 6 to fix the position of the adjusting screw 11 and the limiting block 6. A second connecting rod 15 is provided on the end of the adjusting screw 11 near the spring 13.

[0029] like Figure 2 As shown, by directly rotating the adjusting sleeve 9, the adjusting screw 11 is threaded through the adjusting sleeve 9, thereby driving the adjusting screw 11 to move along the length direction, which facilitates the adjustment of the weight balance of the balance plate 2.

[0030] The fixing structure includes a fixing post 8 that can be threaded through the limiting block 6, and one end of the fixing post 8 can abut against the adjusting screw sleeve 9 inside the limiting block 6.

[0031] After the position of the balance plate 2 is adjusted, the fixing post 8 is threaded through the limiting block 6 and its end abuts against the side of the adjusting screw sleeve 9, so as to fix the position of the adjusting screw sleeve 9, that is, simultaneously fix the position of the adjusting screw 11.

[0032] The connecting assembly includes a first mounting block 3 that can be detachably mounted on the top end face of the fixed base plate 1, a second mounting block 4 that can be detachably mounted on the top end face of the balance plate 2, and a vertical rod 5 that is fixedly disposed on the top end face of the first mounting block 3 in a vertical direction. The top of the vertical rod 5 is fixedly connected to the bottom side of the limiting block 6; the first connecting rod 12 is disposed on the second mounting block 4.

[0033] A protective cover 7 is detachably installed on the limiting block 6, and the protective cover 7 is set on the limiting block 6 and sleeved on the spring 13.

[0034] The rotating groove is provided with a rotating ring 10 sleeved on the side of the adjusting screw sleeve 9. The rotating ring 10 is an oil-free bushing.

[0035] The adjusting screw 11 is equipped with a control that the adjusting screw 11 can only move along the length direction.

[0036] The adjusting screw 11 has a groove along its length on the side of its body. A slider is slidably disposed in the groove and fixedly disposed on the limiting block 6. Due to the limitation of the slider sliding in the groove, when the adjusting screw sleeve 9 is rotated, the adjusting screw 11 will move on the adjusting screw sleeve 9, thus controlling the adjusting screw 11 to move along its length.

[0037] A connecting groove 14 is provided on one end of the adjusting screw 11 near the spring 13, and a second connecting rod 15 is detachably installed in the connecting groove 14.

[0038] The balance spring device of this application has a simple structure. The tension of the spring 13 is adjusted by manually rotating the adjusting screw sleeve 9 to control the weight of the balance plate 2. This is simpler than the existing wheel stop device which uses tools such as screwdrivers to adjust the spring tension, reduces bulky materials, and lowers the difficulty of debugging.

[0039] Compared to existing balance spring devices, the adjustment method using a tension method with a certain tilt angle results in more reasonable force distribution and more stable and accurate control of the weight of the balance plate 2. In the existing balance spring devices, the springs are set horizontally.

[0040] Compared to existing balance spring devices, the fixed ends of spring 13 adopt ( Figure 2 The structure is easy to install and disassemble, and the adjustment end adopts ( Figure 1 and Figure 2 With its structural design, the use of pins makes it less prone to jamming when the balance plate 2 swings up and down, resulting in higher control precision.

[0041] Compared to existing balance spring devices, a fixing and locking mechanism is added. After structural adjustment, the adjusting screw sleeve 9 is fixed and locked by the fixing post 8, preventing subsequent positional movement and facilitating the fixation of the adjusting screw 11, thus ensuring control accuracy. The fixing post 8 uses a fastening set screw.

[0042] Compared to the existing balance spring device, a protective cover 7 is added to prevent dust and enhance the aesthetic appearance.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A balancing spring device, comprising a fixed base plate (1) mounted on an automatic flipping machine, a balancing plate (2) rotatably connected to one side of the fixed base plate (1), and a gravity balancing mechanism connecting the fixed base plate (1) and the balancing plate (2), wherein a mounting head is mounted on the balancing plate (2), characterized in that, The gravity balancing mechanism includes a spring (13) that is set on the top end face of the fixed base plate (1) and the balance plate (2) respectively by connecting components at both ends, and a control component set on the connecting components to control the tension of the spring (13). When the top end face of the fixed base plate (1) and the balance plate (2) are coplanar, the angle between the length direction of the spring (13) and the top end face of the fixed base plate (1) and the balance plate (2) is greater than 0 degrees and less than 90 degrees.

2. The balancing spring device according to claim 1, characterized in that: The angle between the length direction of the spring (13) and the top end face of the fixed base plate (1) and the balance plate (2) is 15° to 45°.

3. A balancing spring device according to claim 2, characterized in that: The control assembly includes a first connecting rod (12) and a second connecting rod (15) respectively mounted on the fixed base plate (1) and the balance plate (2) via a connecting assembly, two connecting rings mounted on the ends of the spring (13) and respectively sleeved on the first connecting rod (12) and the second connecting rod (15), and a control component mounted on the fixed base plate (1) via a connecting assembly to control the second connecting rod (15) to move closer to or away from the first connecting rod (12). The length directions of the first connecting rod (12) and the second connecting rod (15) are parallel.

4. A balancing spring device according to claim 3, characterized in that: The control components include a limiting block (6) mounted above the fixed base plate (1) via a connecting assembly, an adjusting screw (11) that moves along the length of the parallel spring (13) and passes through the limiting block (6), an adjusting sleeve (9) that is threaded onto the adjusting screw (11) and has one end that rotates through the rotating groove in the limiting block (6), and a fixing structure that is mounted on the limiting block (6) and fixes the position of the adjusting screw (11) and the limiting block (6). A second connecting rod (15) is provided on the end of the adjusting screw (11) near the spring (13).

5. A balance spring device according to claim 4, characterized in that: The fixing structure includes a fixing post (8) that can be threaded through the limiting block (6), and the fixing post (8) is inserted into the limiting block (6) with one end abutting against the adjusting screw sleeve (9).

6. A balance spring device according to claim 5, characterized in that: The connecting assembly includes a first mounting block (3) detachably mounted on the top end face of the fixed base plate (1), a second mounting block (4) detachably mounted on the top end face of the balance plate (2), and a vertical rod (5) fixedly disposed on the top end face of the first mounting block (3) in a vertical direction. The top of the vertical rod (5) is fixedly connected to the bottom side of the limiting block (6); a first connecting rod (12) is disposed on the second mounting block (4).

Images