Spot welding equipment for packaging shell of surface acoustic wave filter

Abstract

The utility model discloses spot welding equipment for a surface acoustic wave filter packaging shell, which comprises a spot welding machine body, an upper electrode stem and a lower electrode stem, the upper electrode stem and the lower electrode stem are connected with the spot welding machine body, a mounting plate is fixedly mounted on one side of the outer surface of the spot welding machine body, and a fixing seat is fixedly mounted on one side of the outer surface of the mounting plate. The fixed seat is provided with a rotating assembly, and the movable end of the rotating assembly is fixedly provided with a fixed rod; the fixing rod is provided with a pneumatic lifting assembly. According to the utility model, through the arrangement of the fixed seat, the fixed rod, the rotating assembly, the pneumatic lifting assembly, the assembling seat, the welding cap, the surface acoustic wave filter positioning groove and the positioning connecting assembly, a double-station design is adopted on the whole, the time required by feeding and discharging of the surface acoustic wave filter is compressed within the time required by welding, and during large-batch operation, the packaging and welding efficiency can be obviously improved; and through the arrangement of the positioning connecting assembly, the welding cap can be replaced conveniently, and the overall using effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to a spot welding device for a surface acoustic wave filter packaging shell. Background Art

[0002] Surface acoustic wave is the abbreviation of surface acoustic wave filter and surface acoustic wave resonator. The main principle of the surface acoustic wave filter is to utilize the piezoelectric characteristics of piezoelectric materials. The input and output transducers are used to convert the input signal of the radio wave into mechanical energy. After processing, the mechanical energy is converted back into an electrical signal to achieve the goal of filtering unnecessary signals and noise and improving the receiving quality. Surface acoustic wave filters and surface acoustic wave resonators are widely used in various wireless communication systems, mobile phones, televisions, remote controls, and global Beidou satellite positioning system receivers to replace LC resonance circuits for inter-stage coupling and filtering.

[0003] Currently, when installing a surface acoustic wave filter packaging shell, a medium-frequency spot welder is required for spot welding operations.

[0004] When spot welding an existing surface acoustic wave filter packaging shell, the packaging shell needs to be placed in the top positioning groove of the lower electrode head, and then the surface acoustic wave filter cover plate is placed on the packaging shell. Then, the upper and lower electrode heads are closed for spot welding, and after completion, it is taken out. Although it is a semi-automatic operation, the operation steps are relatively complex, especially the time consumed for loading and unloading is relatively long. During large-scale welding operations, the packaging efficiency is significantly reduced. Content of the Utility Model

[0005] The utility model is proposed to solve the deficiencies in the prior art, and provides a spot welding device for a surface acoustic wave filter packaging shell.

[0006] To achieve the above object, the utility model adopts the following technical solution: A spot welding device for a surface acoustic wave filter packaging shell, including a spot welder body, an upper electrode rod and a lower electrode rod connected to the spot welder body. One side of the outer surface of the spot welder body is fixedly installed with a mounting plate, and one side of the outer surface of the mounting plate is fixedly installed with a fixed seat. The fixed seat is provided with a rotating assembly, and the movable end of the rotating assembly is fixedly installed with a fixed rod;

[0007] The fixed rod is provided with a pneumatic lifting assembly, and the movable end of the pneumatic lifting assembly is fixedly installed with an assembly seat;

[0008] Two welding caps are symmetrically assembled on the assembly seat, and the lower electrode rod is inserted into the adjacent welding cap, and the upper electrode rod is matched with the welding cap. Sound surface wave filter positioning grooves are opened at the tops of the two welding caps;

[0009] A positioning connection assembly is commonly installed between the two welding caps and the assembly seat.

[0010] Furthermore, the rotating assembly includes a motor, and the motor is fixedly installed inside the fixed seat. The driving end of the motor is fixedly connected with a driving gear, and one side of the outer surface of the driving gear is meshed and connected with a driven gear. The top of the driven gear is fixedly connected with a mounting seat, and the mounting seat penetrates through the fixed seat and is fixedly connected with the fixed rod, facilitating driving the fixed rod to rotate.

[0011] Furthermore, the mounting seat is rotatably connected with the fixed seat, and the fixed seat has a supporting effect on the mounting seat, which is beneficial to the installation of the mounting seat.

[0012] Furthermore, the pneumatic lifting assembly includes a cylinder, and the cylinder is fixedly installed at the inner bottom of the fixed rod. The driving end of the cylinder is fixedly connected with a sliding rod, and the sliding rod penetrates through the fixed rod and is fixedly connected with the assembly seat. The cylinder can drive the sliding rod to rise or fall.

[0013] Furthermore, the sliding rod is slidably connected with the fixed rod, and the fixed rod has a limiting effect on the sliding rod, which can ensure the stability of the sliding rod movement.

[0014] Furthermore, both of the positioning and connecting assemblies include positioning grooves, and the positioning grooves are opened at the top of the assembly seat. A positioning block is placed inside the positioning grooves for positioning, and the positioning block is fixedly sleeved on the outer surface of the adjacent welding cap. The cooperation between the positioning groove and the positioning block is beneficial to the positioning and installation of the welding cap.

[0015] Furthermore, two fixing bolts are symmetrically arranged on one side of the outer surface of the assembly seat. The fixing bolts penetrate through the outer wall of the assembly seat and extend into the adjacent positioning groove and are threadedly connected with the assembly seat, and the fixing bolts are threadedly connected with the adjacent positioning block. The setting of the fixing bolts is beneficial to fixing the positioning block.

[0016] The beneficial effects of the present utility model:

[0017] When the present utility model is in use, for the spot welding device of the surface acoustic wave filter packaging shell, through the fixed seat, fixed rod, rotating assembly, pneumatic lifting assembly, assembly seat, welding cap, surface acoustic wave filter positioning groove and positioning and connecting assembly provided, the overall adopts a double-station design, compresses the time required for loading and unloading the surface acoustic wave filter within the time required for its welding. During large-batch operations, the packaging and welding efficiency can be significantly improved, and through the provided positioning and connecting assembly, it is convenient to replace the welding cap, improving the overall use effect. Description of the Drawings

[0018] To more clearly illustrate the technical solution of the present utility model, the following will briefly introduce the drawings required for use in the description of the specific embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 : Perspective view of the present utility model;

[0020] Figure 2 : Of the present utility model Figure 1 Enlarged view of part A;

[0021] Figure 3 : Partial cross-sectional view of the present utility model.

[0022] The reference numerals are as follows:

[0023] 1. Spot welding machine body; 2. Upper electrode rod; 3. Fixed seat; 4. Welding cap; 5. Positioning block; 6. Assembly seat; 7. SAW filter positioning groove; 8. Fixed bolt; 9. Lower electrode rod; 10. Slide rod; 11. Fixed rod; 12. Positioning groove; 13. Cylinder; 14. Mounting plate; 15. Mounting seat; 16. Driving gear; 17. Driven gear; 18. Motor. Specific embodiments

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some, rather than all, embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0025] Such as Figures 1 to 3As shown in the figure, it relates to a spot welding device for a surface acoustic wave filter packaging shell, including a spot welding machine body 1, an upper electrode rod 2 and a lower electrode rod 9 connected to the spot welding machine body 1. On one side of the outer surface of the spot welding machine body 1, a mounting plate 14 is fixedly installed. On one side of the outer surface of the mounting plate 14, a fixing seat 3 is fixedly installed. The fixing seat 3 is equipped with a rotating assembly. The movable end of the rotating assembly is fixedly installed with a fixing rod 11. The rotating assembly includes a motor 18, and the motor 18 is fixedly installed inside the fixing seat 3. The driving end of the motor 18 is fixedly connected with a driving gear 16. On one side of the outer surface of the driving gear 16, a driven gear 17 is meshed and connected. The top of the driven gear 17 is fixedly connected with a mounting seat 15, and the mounting seat 15 penetrates through the fixing seat 3 and is fixedly connected with the fixing rod 11. The mounting seat 15 is rotatably connected with the fixing seat 3. The motor 18 can drive the driving gear 16 to rotate. The cooperation of the driving gear 16 and the driven gear 17 can drive the mounting seat 15 to rotate.

[0026] The fixing rod 11 is equipped with a pneumatic lifting assembly. The movable end of the pneumatic lifting assembly is fixedly installed with an assembly seat 6. The pneumatic lifting assembly includes a cylinder 13, and the cylinder 13 is fixedly installed at the inner bottom of the fixing rod 11. The driving end of the cylinder 13 is fixedly connected with a sliding rod 10, and the sliding rod 10 penetrates through the fixing rod 11 and is fixedly connected with the assembly seat 6. The sliding rod 10 is slidably connected with the fixing rod 11. The cylinder 13 can push the sliding rod 10 to rise or fall. The fixing rod 11 can ensure the stability of the movement of the sliding rod 10.

[0027] Two welding caps 4 are symmetrically assembled on the assembly seat 6. The lower electrode rod 9 is inserted into the adjacent welding cap 4, and the upper electrode rod 2 is matched with the welding cap 4. Sound surface acoustic wave filter positioning grooves 7 are opened at the tops of the two welding caps 4. Two positioning connection components are jointly installed between the two welding caps 4 and the assembly seat 6. Both positioning connection components include positioning grooves 12, and the positioning grooves 12 are opened at the top of the assembly seat 6. A positioning block 5 is placed inside the positioning groove 12 for positioning. The cooperation of the positioning groove 12 and the positioning block 5 can realize the positioning installation of the welding cap 4 to prevent the position from shifting. The positioning block 5 is fixedly sleeved on the outer surface of the adjacent welding cap 4. The positioning block 5 can be made of ceramic material, which has insulation and heat insulation properties. On one side of the outer surface of the assembly seat 6, two fixing bolts 8 are symmetrically provided. The fixing bolts 8 penetrate through the outer wall of the assembly seat 6 and extend into the adjacent positioning groove 12 and are threadedly connected with the assembly seat 6. The fixing bolts 8 are threadedly connected with the adjacent positioning block 5. The fixing bolts 8 have a fixing effect on the positioning block 5.

[0028] Working principle: First, place the encapsulation housing in the SAW filter positioning slot 7, then place the SAW filter cover plate on the encapsulation housing. Next, start the motor 18. The motor 18 drives the driving gear 16 to rotate. The driving gear 16 drives the driven gear 17 to rotate. The driven gear 17 drives the mounting seat 15 to rotate. The mounting seat 15 drives the fixing rod 11, the sliding rod 10, and the assembly seat 6 to rotate. The assembly seat 6 moves the just-placed SAW filter cover plate and the encapsulation housing to the lower part of the upper electrode rod 2 through the welding cap 4. Then, the cylinder 13 pushes the sliding rod 10 to descend. The sliding rod 10 drives the assembly seat 6 to descend until the corresponding welding cap 4 is inserted into the top of the lower electrode rod 9 and is in close contact with it. Then, perform the electric welding operation. When it is necessary to replace the welding cap 4, unscrew the fixing bolt 8, then take out the welding cap 4 and the positioning block 5, then replace them with new welding cap 4 and positioning block 5, and then tighten the fixing bolt 8.

[0029] The preferred embodiments of the present utility model disclosed above are only used to help explain the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to only the specific implementation manners. Obviously, according to the content of this specification, many modifications and changes can be made. These embodiments are selected and specifically described in this specification in order to better explain the principle and practical application of the present utility model, so that those skilled in the relevant technical field can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A spot welding device for a surface acoustic wave filter packaging shell, comprising a spot welding machine body (1), an upper electrode rod (2) and a lower electrode rod (9) connected to the spot welding machine body (1), characterized in that: On one side of the outer surface of the spot welder body (1), a mounting plate (14) is fixedly installed. On one side of the outer surface of the mounting plate (14), a fixed seat (3) is fixedly installed. The fixed seat (3) is provided with a rotating assembly, and a fixed rod (11) is fixedly installed at the movable end of the rotating assembly; The fixed rod (11) is provided with a pneumatic lifting assembly, and an assembly seat (6) is fixedly installed at the movable end of the pneumatic lifting assembly; Two welding caps (4) are symmetrically assembled on the assembly seat (6). The lower electrode rod (9) is inserted into the adjacent welding cap (4), and the upper electrode rod (2) is matched with the welding cap (4). Sound surface filter positioning grooves (7) are formed at the tops of the two welding caps (4); A positioning connection assembly is jointly installed between the two welding caps (4) and the assembly seat (6).

2. The spot welding device for a surface acoustic wave filter packaging housing according to claim 1, characterized in that: The rotating assembly includes a motor (18), and the motor (18) is fixedly installed inside the fixed seat (3). The driving end of the motor (18) is fixedly connected to a driving gear (16). On one side of the outer surface of the driving gear (16), a driven gear (17) is meshed. The top of the driven gear (17) is fixedly connected to a mounting seat (15), and the mounting seat (15) penetrates through the fixed seat (3) and is fixedly connected to the fixed rod (11).

3. The spot welding device for a surface acoustic wave filter packaging case according to claim 2, characterized in that: The mounting seat (15) is rotatably connected to the fixed seat (3).

4. The spot welding device for the surface acoustic wave filter packaging shell according to claim 1, characterized in that: The pneumatic lifting assembly includes a cylinder (13), and the cylinder (13) is fixedly installed at the inner bottom of the fixed rod (11). The driving end of the cylinder (13) is fixedly connected to a sliding rod (10), and the sliding rod (10) penetrates through the fixed rod (11) and is fixedly connected to the assembly seat (6).

5. The spot welding device for a surface acoustic wave filter packaging housing according to claim 4, characterized in that: The sliding rod (10) is slidably connected to the fixed rod (11).

6. The spot welding device for the surface acoustic wave filter packaging shell according to claim 1, characterized in that: Both of the two positioning connection assemblies include positioning grooves (12), and the positioning grooves (12) are formed at the top of the assembly seat (6). A positioning block (5) is placed inside the positioning groove (12) for positioning, and the positioning block (5) is fixedly sleeved on the outer surface of the adjacent welding cap (4).

7. The spot welding device for the surface acoustic wave filter package housing according to claim 6, characterized in that: On one side of the outer surface of the assembly seat (6), two fixing bolts (8) are symmetrically provided. The fixing bolts (8) penetrate through the outer wall of the assembly seat (6) and extend into the adjacent positioning groove (12) and are threadedly connected to the assembly seat (6), and the fixing bolts (8) are threadedly connected to the adjacent positioning block (5).

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