Tool jig suitable for ceramic PCB surface organic coating process

Abstract

The utility model belongs to the technical field of PCB (printed circuit board) processing, and particularly relates to a tool jig suitable for a ceramic PCB surface organic coating process, which comprises an operating table, supporting legs are fixedly mounted at the bottom of the operating table, and a positioning device and a fixing device are arranged at the top of each supporting leg; the positioning device comprises an electric push rod, a first push plate, a first spring, a second push plate, a clamping plate, two triangular plates and a cambered surface block, the fixed end of the electric push rod is fixedly installed on the inner wall and the outer wall of the operation table, the first push plate is fixedly installed on the surface of the output end of the electric push rod, and the first spring is fixedly installed on the face, away from the electric push rod, of the first push plate. The second push plate is connected with the first push plate through a first spring, and the clamping plate is installed on the face, close to the second push plate, of the first push plate in a sliding mode.

Description

Technical Field

[0001] This utility model belongs to the field of PCB board processing technology, specifically relating to a tooling fixture suitable for organic coating processes on the surface of ceramic PCB boards. Background Technology

[0002] In the organic coating process on the surface of ceramic circuit boards, the design of the tooling fixture is crucial. It needs to ensure that the circuit board can be firmly fixed during the coating process, while avoiding the coating effect due to factors such as friction and vibration.

[0003] Chinese patent CN208657174U discloses a tooling fixture suitable for organic coating processes on ceramic circuit boards. The fixture includes a main body with metal blocks on it. The number of metal blocks varies depending on the size of the production equipment and the ceramic sheet, maximizing the number within the allowable size range of the production equipment. Grooves are formed on the metal blocks, and protrusions are provided on all four sides and corners of the metal blocks. These protrusions are used for deep cutting, the depth of which is calculated to ensure consistent contact between both sides of the ceramic sheet and the metallizing components in the metallization equipment. This patent, through the coordinated use of the main body, metal blocks, grooves, and protrusions, solves the problem of traditional methods where pre-cut ceramic PCBs are placed directly on rollers when passing through the organic coating horizontal line. Due to the characteristics of the ceramic substrate, the gripping force of the rollers is directly applied to the ceramic sheet, easily causing cracking, board breakage, and a large amount of scrap.

[0004] However, the current fixture for organic coating processes on ceramic circuit boards has the following problems: by placing the board directly on the roller, due to the characteristics of the ceramic substrate, the gripping force of the roller is directly applied to the ceramic board, which can easily cause the board to crack or fall off, resulting in a large number of scraps. However, during processing, the position of the ceramic board needs to be positioned. Processing directly without positioning will affect the processing of the ceramic board and lead to processing failure. Therefore, we propose a fixture suitable for organic coating processes on ceramic PCB boards. Utility Model Content

[0005] The purpose of this invention is to provide a tooling fixture suitable for organic coating processes on ceramic PCB boards, which can solve the problem of positioning difficulties during processing in related technologies.

[0006] The specific technical solution adopted by this utility model is as follows:

[0007] A fixture suitable for organic coating processes on ceramic PCB boards includes an operating table. The operating table has supporting legs fixedly mounted at its bottom, and a positioning device and a fixing device are provided at the top of the supporting legs. The positioning device includes: an electric push rod, a first push plate, a first spring, a second push plate, a positioning plate, two triangular plates, and an arc-shaped block. The fixed end of the electric push rod is fixedly mounted on the inner and outer walls of the operating table. The first push plate is fixedly mounted on the output end surface of the electric push rod. The first spring is fixedly mounted on the side of the first push plate away from the electric push rod. The second push plate is connected to the first push plate via the first spring. The positioning plate is slidably mounted on the side of the first push plate near the second push plate. Both triangular plates are fixedly mounted at both ends of the positioning plate. The arc-shaped block is fixedly mounted on the side of the second push plate near the first push plate.

[0008] The surface of the operating table is provided with a limiting groove, and the arc block is in contact with the triangular plate.

[0009] The positioning plate contacts the limiting groove, and a reset spring is provided between the positioning plate and the push plate.

[0010] The fixing device includes: an air cylinder, a piston, a connecting rod, a sponge suction cup, and a transmission rod. The air cylinder is fixedly inserted through the inner and outer walls of the operating table. The piston is slidably installed on the inner wall of the air cylinder. The connecting rod is fixedly installed on the top of the piston. The sponge suction cup is fixedly installed on the top of the connecting rod. The transmission rod slidably inserts through the inner and outer walls of the air cylinder. The transmission rod is fixedly installed on the bottom of the piston.

[0011] The fixing device also includes: an elastic telescopic rod, a fixing plate, a transmission block, and a connecting rod. The elastic telescopic rod is fixedly installed at the bottom of the operating table. The fixing plate is fixedly installed at the bottom of the free end of the elastic telescopic rod. The transmission blocks are all fixedly installed at the top of the fixing plate. One end of the connecting rod is fixedly installed on the side of the fixing plate near the air cylinder, and the other end of the connecting rod is fixedly inserted through the inner and outer walls of the transmission rod.

[0012] A second spring is provided between the piston and the air cylinder. An air outlet is provided at the bottom of the air cylinder. The locking plate is in contact with the transmission block. A third spring is provided inside the elastic telescopic rod.

[0013] The technical effects achieved by this utility model are as follows:

[0014] This invention, through the setting of a positioning device, ensures that the push plate two stops moving after contacting the ceramic plate, thus positioning the ceramic plate. This allows for positioning of the ceramic plate during the processing of different models of ceramic plates, improving the practicality of the device. After the locking plate moves to the bottom, it contacts and locks into the inner wall of the limiting groove, preventing the push plate one from moving any further. This prevents the push plate one from stopping after the ceramic plate is positioned, thus preventing the ceramic plate from being damaged by excessive pushing force and improving the protection effect of the device.

[0015] This invention, through the setting of a fixing device, allows the sponge suction cup to contact the ceramic plate. Due to the pressure difference between the inside and outside of the sponge suction cup, the sponge suction cup generates suction on the ceramic plate, enabling the sponge suction cup to initially position the ceramic plate and prevent the ceramic plate from shifting during processing, thus preventing processing failure and improving the pass rate of the device. The piston moving to the bottom will drive the connecting rod to the bottom, and the movement of the connecting rod will drive the sponge suction cup to the bottom, generating greater suction force and making the ceramic plate more firmly fixed, thereby improving the practicality of the device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the entire utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the push plate at two cross sections of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure at the bottom of the operating table of this utility model;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the air cylinder of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure at the positional relationship of the connecting rod in this utility model.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1. Operating table; 2. Support leg; 31. Electric push rod; 32. Push plate one; 33. Spring No. 1; 34. Push plate two; 35. Positioning plate; 36. Triangular plate; 37. Arc block; 38. Limiting groove; 41. Air cylinder; 42. Piston; 43. Connecting rod; 44. Sponge suction cup; 45. Transmission rod; 46. Spring No. 2; 47. Elastic telescopic rod; 48. Fixing plate; 49. Transmission block; 410. Connecting long rod. Detailed Implementation

[0023] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0024] like Figure 1-2 As shown, a tooling fixture suitable for organic coating processes on ceramic PCB boards includes an operating table 1. A support leg 2 is fixedly installed at the bottom of the operating table 1, and a positioning device and a fixing device are provided at the top of the support leg 2. The positioning device includes: an electric push rod 31, a first push plate 32, a first spring 33, a second push plate 34, a locking plate 35, two triangular plates 36, and an arc-shaped block 37. The fixed end of the electric push rod 31 is fixedly installed on the inner and outer walls of the operating table 1. The first push plate 32 is fixedly installed on the output end surface of the electric push rod 31. The first spring 33 is fixedly installed on the side of the first push plate 32 away from the electric push rod 31. The second push plate 34 is connected to the first push plate 32 via the first spring 33. The locking plate 35 is slidably installed on the side of the first push plate 32 near the second push plate 34. Both triangular plates 36 are fixedly installed at both ends of the locking plate 35. The arc-shaped block 37 is fixedly installed on the side of the second push plate 34 near the first push plate 32.

[0025] A limiting groove 38 is provided on the surface of the operating table 1, and the arc block 37 contacts the triangular plate 36.

[0026] The positioning plate 35 contacts the limiting groove 38, and a reset spring is provided between the positioning plate 35 and the push plate 32.

[0027] According to the above structure, the ceramic plate is placed on top of the operating table 1. Then, the electric push rod 31 is activated. The output end of the electric push rod 31 moves, causing push plate 32 to move towards the ceramic plate. The movement of push plate 32 causes spring 33 to move towards the ceramic plate. Spring 33 then causes push plate 34 to move towards the ceramic plate. Push plate 34 will contact the ceramic plate and stop moving after contact, thus positioning the ceramic plate. This allows for positioning of the ceramic plate when processing different types of ceramic plates, improving the practicality of the device. As push plate 32 continues to move, the push plate... The movement of push plate 32 will cause the positioning plate 35 to move towards push plate 34. The movement of positioning plate 35 will cause the triangular plate 36 to move towards push plate 34. Triangular plate 36 will contact the arc block 37. Triangular plate 36 will be blocked by arc block 37, causing triangular plate 36 to move to the bottom. The movement of triangular plate 36 to the bottom will cause positioning plate 35 to move to the bottom. After positioning plate 35 moves to the bottom, it will contact the limiting groove 38 and be locked into the inner wall of the limiting groove 38, so that push plate 32 can no longer move. This prevents push plate 32 from stopping after the ceramic plate is positioned, prevents the ceramic plate from being damaged by excessive pushing force, and improves the protection effect of the device.

[0028] like Figure 1-5 As shown, the fixing device includes: an air cylinder 41, a piston 42, a connecting rod 43, a sponge suction cup 44, and a transmission rod 45. The air cylinder 41 is fixedly inserted through the inner and outer walls of the operating table 1. The piston 42 is slidably installed on the inner wall of the air cylinder 41. The connecting rod 43 is fixedly installed on the top of the piston 42. The sponge suction cup 44 is fixedly installed on the top of the connecting rod 43. The transmission rod 45 is slidably inserted through the inner and outer walls of the air cylinder 41 and is fixedly installed on the bottom of the piston 42.

[0029] The fixing device also includes: an elastic telescopic rod 47, a fixing plate 48, a transmission block 49, and a connecting rod 410. The elastic telescopic rod 47 is fixedly installed at the bottom of the operating table 1. The fixing plate 48 is fixedly installed at the bottom of the free end of the elastic telescopic rod 47. The transmission blocks 49 are all fixedly installed at the top of the fixing plate 48. One end of the connecting rod 410 is fixedly installed on the side of the fixing plate 48 near the air cylinder 41, and the other end of the connecting rod 410 is fixedly inserted through the inner and outer walls of the transmission rod 45.

[0030] A second spring 46 is provided between the piston 42 and the air cylinder 41. An air outlet is provided at the bottom of the air cylinder 41. The locking plate 35 is in contact with the transmission block 49. A third spring is provided inside the elastic telescopic rod 47.

[0031] According to the above structure, after the ceramic plate is positioned, it comes into contact with the sponge suction cup 44. Due to the pressure difference between the inside and outside of the sponge suction cup 44, the sponge suction cup 44 generates suction on the ceramic plate, which initially positions the ceramic plate and prevents the ceramic plate from shifting during processing, thus improving the pass rate of the device. The positioning plate 35 moves to the bottom and comes into contact with the transmission block 49. The movement of the positioning plate 35 to the bottom will drive the transmission block 49 to the bottom, which in turn will drive the fixing plate 48 to the bottom. The movement of the fixing plate 48 to the bottom will drive the connecting rod 410 to the bottom, which in turn will drive the transmission rod 45 to the bottom. The movement of the transmission rod 45 will drive the piston 42 to the bottom, which in turn will drive the connecting rod 43 to the bottom. The movement of the connecting rod 43 will drive the sponge suction cup 44 to the bottom, making the sponge suction cup 44 generate greater suction and making the ceramic plate more firmly fixed, thus improving the practicality of the device.

[0032] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A tooling fixture suitable for organic coating processes on ceramic PCB surfaces, comprising an operating table (1), characterized in that: The operating table (1) has a support leg (2) fixedly installed at its bottom, and a positioning device and a fixing device are provided at the top of the support leg (2). The positioning device includes: an electric push rod (31), a push plate one (32), a first spring (33), a push plate two (34), a positioning plate (35), two triangular plates (36) and an arc-shaped block (37). The fixed end of the electric push rod (31) is fixedly installed on the inner and outer walls of the operating table (1). The push plate one (32) is fixedly installed on the output end surface of the electric push rod (31). The first spring (33) is fixedly installed on the side of the push plate one (32) away from the electric push rod (31). The push plate two (34) is connected to the push plate one (32) through the first spring (33). The positioning plate (35) is slidably installed on the side of the push plate one (32) close to the push plate two (34). The two triangular plates (36) are fixedly installed at both ends of the positioning plate (35). The arc-shaped block (37) is fixedly installed on the side of the push plate two (34) close to the push plate one (32).

2. The tooling fixture for organic coating processes on ceramic PCB boards according to claim 1, characterized in that: The surface of the operating table (1) is provided with a limiting groove (38), and the arc block (37) is in contact with the triangular plate (36).

3. The tooling fixture for organic coating processes on ceramic PCB boards according to claim 2, characterized in that: The positioning plate (35) contacts the limiting groove (38), and a reset spring is provided between the positioning plate (35) and the push plate (32).

4. The tooling fixture for organic coating processes on ceramic PCB boards according to claim 3, characterized in that: The fixing device includes: an air cylinder (41), a piston (42), a connecting rod (43), a sponge suction cup (44), and a transmission rod (45). The air cylinder (41) is fixedly inserted through the inner and outer walls of the operating table (1). The piston (42) is slidably installed on the inner wall of the air cylinder (41). The connecting rod (43) is fixedly installed on the top of the piston (42). The sponge suction cup (44) is fixedly installed on the top of the connecting rod (43). The transmission rod (45) is slidably inserted through the inner and outer walls of the air cylinder (41). The transmission rod (45) is fixedly installed on the bottom of the piston (42).

5. A tooling fixture suitable for organic coating processes on ceramic PCB boards according to claim 4, characterized in that: The fixing device also includes: an elastic telescopic rod (47), a fixing plate (48), a transmission block (49), and a connecting rod (410). The elastic telescopic rod (47) is fixedly installed at the bottom of the operating table (1). The fixing plate (48) is fixedly installed at the bottom of the free end of the elastic telescopic rod (47). The transmission blocks (49) are all fixedly installed at the top of the fixing plate (48). One end of the connecting rod (410) is fixedly installed on the side of the fixing plate (48) near the air cylinder (41). The other end of the connecting rod (410) is fixedly inserted through the inner and outer walls of the transmission rod (45).

6. A tooling fixture suitable for organic coating processes on ceramic PCB boards according to claim 5, characterized in that: A second spring (46) is provided between the piston (42) and the air cylinder (41), and an air outlet is provided at the bottom of the air cylinder (41).

7. A tooling fixture suitable for organic coating processes on ceramic PCB boards according to claim 6, characterized in that: The card plate (35) contacts the transmission block (49), and the elastic telescopic rod (47) is equipped with a No. 3 spring.

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