Self-adaptive stepless adjustment height leveling jig and use method thereof

Abstract

The invention relates to a self-adaptive stepless adjustment height leveling jig and a using method thereof. The self-adaptive stepless adjustment height leveling jig structurally comprises a silk screen fixing piece, a fixing base, an assembly positioning plate, a silk screen supporting piece, a clamping block and a lifting table. The silk screen fixing piece, the silk screen supporting piece, the assembly positioning plate and the fixing base are detachably connected through screws. A plurality of assembly positioning grooves and clamping block grooves are formed in the assembly positioning plate in an array mode, lifting tables are arranged in the assembly positioning grooves, and clamping blocks are arranged in the clamping block grooves. The self-adaptive stepless adjustment height leveling jig has the advantages that self-adaptive leveling of all assemblies of the same type can be achieved through the self-adaptive stepless adjustment height leveling jig, the self-adaptive stepless adjustment height leveling jig is suitable for automatic large-scale production, the production cost is reduced, and the production efficiency and the product quality stability are improved; high interchangeability is reserved at the positions prone to loss, timely repair is facilitated, integrated design is adopted as a whole, and production line operation and use and later maintenance and repair are facilitated.

Description

Technical Field

[0001] The present invention relates to a height leveling fixture with adaptive stepless adjustment, belonging to the technical fields of SMT process technology and full-automatic non-standard assembly engineering practice. Background Art

[0002] Screen printing technology is widely used in industries such as electronic components, solar cells, and textiles. During these production processes, to ensure the consistency of product quality, the height differences between the printing platform of the screen printing equipment, the squeegee, and the screen must be precisely leveled. However, due to differences in component thickness, screen tension, and squeegee pressure, the traditional fixed loading method cannot precisely level the height differences, and at this time, precise and flexible height leveling is particularly important.

[0003] To solve the above problems, some electric or pneumatic auxiliary adjustment devices have emerged on the market. However, most of these systems are complex in structure and high in cost, and at the same time, it is difficult to achieve precise stepless adjustment. Therefore, it is necessary to design a height leveling fixture with adaptive stepless adjustment to meet the high-precision and high-efficiency requirements for height adjustment in the screen printing process. Summary of the Invention

[0004] The present invention proposes a height leveling fixture with adaptive stepless adjustment and its manufacturing method. The purpose is to propose, in view of the above-mentioned defects existing in the prior art, a screen printing process for the fields of SMT process technology and full-automatic non-standard assembly engineering practice, which can greatly improve production efficiency, reduce production costs, and improve the quality stability of products.

[0005] The technical solution of the present invention: A height leveling fixture with adaptive stepless adjustment includes a screen fixing member 1, a fixed base 4, a component positioning plate 5, a screen support member 6, a clamping block 7, and a lifting table 9; the screen fixing member 1 and the screen support member 6 are square ring-shaped structures, the screen fixing member 1 and the screen support member 6 are detachably connected by screws, the screen support member 6 and the fixed base 4 are detachably connected by screws, and the component positioning plate 5 is arranged between the fixed base 4 and the screen support member 6 and is detachably connected to the fixed base 4 by screws; a plurality of component positioning slots and clamping block slots are arranged in an array on the component positioning plate 5, a lifting table 9 is arranged in the component positioning slots, and the lifting table can be vertically and movably installed axially in the component positioning slots; the clamping block slots are arranged on one side of the component positioning slots, and clamping blocks 7 are arranged inside, and the clamping blocks 7 can be movably installed in parallel in the clamping block slots.

[0006] Three spherical locating pins are provided on the fixed base 4, and the screen support member 6 is installed and fixed through the spherical locating pins.

[0007] The wire mesh support member 6 is provided with threaded holes corresponding to the wire mesh fixing member 1, and the wire mesh support member 6 is detachably connected to the wire mesh fixing member 1.

[0008] One end of the clamping block 7 close to the component 2 is a rectangular block one with a chamfer and a counterbore, and the top of the rectangular block one protrudes for axially fixing the component 2; the other end is a rectangular block two with two counterbores, and springs are installed in the counterbores, and the other ends of the springs are in direct contact with the side wall of the clamping block groove away from the component.

[0009] The side wall of the clamping block groove away from the component is provided with a counterbore, and the spring is fixedly connected to the counterbore, which simplifies the loading and unloading process.

[0010] The lifting table 9 is a rectangular block with four counterbores dug at the bottom, and springs are installed in the counterbores. The bottom of the springs contacts the fixed base to generate a reaction force for jacking up the component.

[0011] One end of the spring below the lifting table 9 is fixedly connected to the counterbore at the bottom of the lifting table, which simplifies the loading and unloading process.

[0012] The wire mesh 10 is provided with positioning holes, and the wire mesh fixing member 1 and the wire mesh support member 6 are provided with corresponding positioning pin holes. Under the combined clamping action of the wire mesh support member 6 and the wire mesh fixing member 1, the wire mesh 10 is fixed in the working position through the positioning pins.

[0013] It further includes a clamping block fixing member 3. The lower end of the clamping block fixing member 3 is provided with a groove matching the shape of the rectangular block two at the rear end of the clamping block 7. Threaded holes are opened at both ends of the upper surface of the clamping block fixing member 3, and it is detachably connected to the corresponding threaded holes on the component positioning plate through screws, playing a role in axially and vertically fixing the clamping block.

[0014] The usage method of the height leveling jig includes the following steps: (1) Place the component on the lifting table. The spring at the bottom of the lifting table is compressed and contacts the fixed base directly to generate a reaction force to jack up the component. The top of the rectangular block one of the clamping block protrudes and is in direct contact with the side surface of the component to axially fix the component. After the component is placed, the clamping block moves in the direction away from the component, and the spring on the side surface of the rectangular block two is compressed and is in direct contact with the side wall of the clamping groove to generate a reaction force to clamp and fix the component; (2) Align the positioning holes of the wire mesh 10 with the positioning pin holes of the wire mesh support member 6, insert the positioning pins, and align the positioning pin holes of the wire mesh fixing member 1 with the positioning pins, and press down to fix the wire mesh in the working position; (3) When the component needs to be taken out, push the clamping block in the direction away from the component, and the component can be taken out.

[0015] The beneficial effects of the present invention: 1) The self - adaptive stepless height leveling jig proposed by the present invention can provide self - adaptive height leveling for the loading components of a screen printing machine in the screen printing process, which is suitable for large - scale automated production. A self - adaptive stepless height leveling jig can achieve self - adaptive leveling for all components of the same type, greatly reducing production costs, improving production efficiency, and at the same time improving the quality stability of products.

[0016] 2) The entire set of a self - adaptive stepless height leveling jig retains high interchangeability at easily damaged and failed parts, ensuring that it can be repaired in time without delaying the production progress when a failure occurs.

[0017] 3) The overall design is simple and clear, adopting an integrated design, which is convenient for operation and later maintenance in the production line, effectively improving production efficiency. Description of the Drawings

[0018] Att Figure 1 is a structural diagram of a self - adaptive stepless height leveling jig of the present invention.

[0019] Figure 2 is a structural diagram of the clamping block 7 of the present invention.

[0020] Figure 3 is a schematic structural diagram of the components of the present invention on a substrate.

[0021] Figure 4 is a screen fixing diagram of the present invention.

[0022] In the drawings, 1 is a screen fixing part, 2 is a component, 3 is a clamping block fixing part, 4 is a fixed base, 5 is a component positioning plate, 6 is a screen support part, 7 is a clamping block, 8 is a spring, 9 is a lifting platform, and 10 is a screen. Detailed Embodiment

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0024] A self - adaptive stepless height leveling jig includes the following components: A component positioning plate, which is located on the fixed base. Threaded holes are respectively opened near the four corners thereof to maintain a detachable connection with the fixed base. And three spherical positioning pins are provided on its surface to maintain a detachable connection with the screen support part. Component positioning grooves are arranged in an array, and the lifting platform can move vertically along the axis in the grooves. In addition, a clamping block is provided beside the top of the component positioning groove for clamping the component to prevent the component from shifting during loading, unloading, handling, and printing processes, which affects the quality, and facilitating the better clamping and fixing of the component by this jig.

[0025] Lifting table, the main body of the lifting table is a cuboid block with four counterbores dug at the bottom. Springs are installed in the counterbores and are in direct contact with the fixed base to play a supporting role. Under the combined action of the fixed base and the component positioning plate, an adaptive stepless adjustment within 0.5 mm is achieved.

[0026] Clamping block, the front end of the clamping block is a cuboid with a chamfer and a counterbore dug therein, and the other end is a cuboid block with two counterbores dug therein. Springs are installed in the counterbores and are in direct contact with the side of the clamping block groove. It is fixed in the clamping block groove under the combined action of the component and the side wall of the clamping block groove. When the component is placed, the clamping block moves to one side, and the clamping block clamps the component under the action of the reaction force of the spring, and fixes the component in the component groove.

[0027] Clamping block fixing part, the clamping block fixing part is a cuboid block with a groove matching the shape of the rear end of the clamping block opened at the bottom, and threaded holes are opened at both ends thereof. It is detachably connected to the corresponding threaded holes on the component positioning plate through screws, playing a role in axially vertically fixing the clamping block.

[0028] Wire mesh support part, the main body of the wire mesh support part is a square ring, and through holes corresponding to the spherical positioning pins on the component positioning plate are opened thereon. Three positioning pin holes are also opened above it for fixing the wire mesh, and corresponding threaded holes are opened on each of the four sides for making the wire mesh support part detachably connected to the wire mesh fixing part.

[0029] Wire mesh fixing part, the main body of the wire mesh fixing part is also a square ring, with a thickness thicker than that of the wire mesh support part. Three positioning pin holes corresponding to those on the wire mesh support part are opened thereon for fixing the wire mesh, and corresponding threaded holes are opened on each of the four sides, and the two are detachably connected.

[0030] Fixed base, the fixed base is used for installing the component positioning plate, and threaded holes are respectively opened near the four corners thereof to be detachably connected to the component positioning plate. The springs at the bottom of the lifting table are in direct contact with the fixed base plate to generate a reaction force for jacking up the component.

[0031] Preferably, one end of the spring below the lifting table can be fixedly connected to the counterbore at the bottom of the lifting table to simplify the loading and unloading process.

[0032] Preferably, one end of the spring below the clamping block can be fixedly connected to the counterbore at the bottom of the clamping block to simplify the loading and unloading process. The technical solution of the present invention will be further explained below with reference to the accompanying drawings.

[0033] As Figure 1As shown in the figure, the structural diagram of an adaptive stepless height leveling fixture according to the present invention. It can be seen from the figure that the screen fixing member 1 and the screen supporting member 6 are connected by screws at their four corners, and the two adopt a detachable connection method. The component positioning plate 5 is sandwiched between the fixed base 4 and the screen supporting member 6. The fixed base is installed through the screws at its four corners, and the screen supporting member is fixed through three spherical positioning pins on it. The component 2 is located in the component slot in the component support plate, and the clamping block fixing member is installed on the clamping block 7 in the clamping block slot. The overall cuboid design makes it suitable for the automatic loading and unloading track.

[0034] As Figure 2 Shown is the structural diagram of the clamping block 7. The front end of the clamping block 7 is a cuboid with a chamfer and a counterbore dug in it, and the other end is a cuboid block with two counterbores dug in it. Springs 8 are installed in the counterbores and are in direct contact with the side of the clamping block slot of the component positioning plate. It is fixed in the clamping block slot through the combined action of the component and the side of the clamping block slot. When the component is placed, the clamping block moves towards the bottom surface. After placing, the clamping block clamps the component under the action of the reaction force of the spring, and fixes the component in the component slot. When the component needs to be taken out, only need to push the clamping block inwards to take out the component.

[0035] As Figure 3 Shown is the component fixing diagram. The component is stably positioned at the loading position under the combined action of the fixed base 4, the lifting table 9 and the clamping block 7. The fixed base 4 and the component positioning plate 5 are connected by screws at their four corners. The component is placed on the lifting table. The spring at the bottom of the lifting table is compressed and is in direct contact with the fixed base plate to generate a reaction force to lift the component. The clamping block is in direct contact with the side of the component, and the spring at its bottom is compressed and is in direct contact with the clamping slot of the component positioning plate to generate a reaction force to clamp the component.

[0036] As Figure 4 Shown is the screen 10 fixing diagram. The screen 10 is fixed at the working position through the positioning pins under the combined clamping action of the screen supporting member 6 and the screen fixing member 1. The specific installation process is to align the positioning holes of the screen 10 with the positioning pin holes of the screen supporting member 6, insert the positioning pins, and then align the positioning pin holes of the screen fixing member 1 with the positioning pins and press down to firmly fix the screen at the working position. The screen can be disassembled by reverse operation. This detachable design ensures that the fixture has high interchangeability and can be replaced and repaired in time in case of failure, ensuring production efficiency.

[0037] The above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by those skilled in the art within the essence of the present invention should also fall within the protection scope of the present invention.

Claims

1. An adaptive stepless height leveling jig, characterized in that It includes a screen fixing member (1), a fixing base (4), a component positioning plate (5), a screen support member (6), a clamping block (7), and a lifting table (9); the screen fixing member (1) and the screen support member (6) are square ring-shaped structures, the screen fixing member (1) is detachably connected to the screen support member (6) by screws, the screen support member (6) is detachably connected to the fixing base (4) by screws, and the component positioning plate (5) is arranged between the fixing base (4) and the screen support member (6) and is detachably connected to the fixing base (4) by screws; a plurality of component positioning grooves and clamping block grooves are arranged in an array on the component positioning plate (5), a lifting table (9) is arranged in the component positioning groove, and the lifting table can be vertically movably installed axially in the component positioning groove; the clamping block groove is arranged on one side of the component positioning groove and is internally provided with a clamping block (7), and the clamping block (7) can be movably installed in parallel in the clamping block groove.

2. The height leveling fixture with adaptive stepless adjustment according to claim 1, characterized in that Three spherical positioning pins are provided on the fixing base (4), and the screen support member (6) is installed and fixed through the spherical positioning pins.

3. The height leveling jig with adaptive stepless adjustment according to claim 1, characterized in that Threaded holes corresponding to the screen fixing member (1) are formed in the screen support member (6), and the screen support member (6) is detachably connected to the screen fixing member (1).

4. An adaptive stepless height leveling jig according to claim 1, characterized in that One end of the clamping block (7) close to the component (2) is a rectangular block one with a chamfer and a counterbore, and the top of the rectangular block one protrudes for axially fixing the component (2); the other end is a rectangular block two with two counterbores, and springs are installed in the counterbores, and the other ends of the springs are in direct contact with the side wall of the clamping block groove away from the component.

5. The height leveling jig with adaptive stepless adjustment according to claim 4, characterized in that A counterbore is provided on the side wall of the clamping block groove away from the component, and the spring is fixedly connected to the counterbore, simplifying the loading and unloading process.

6. The height leveling fixture with adaptive stepless adjustment according to claim 1, characterized in that The lifting table (9) is a rectangular block with four counterbores dug at the bottom, and springs are installed in the counterbores. The bottom of the springs contacts the fixing base to generate a reaction force for jacking up the component.

7. An adaptive stepless height leveling jig according to claim 6, characterized in that One end of the spring below the lifting table (9) is fixedly connected to the counterbore at the bottom of the lifting table, simplifying the loading and unloading process.

8. An adaptive stepless height leveling jig according to claim 1, characterized in that Positioning holes are provided on the screen (10), corresponding positioning pin holes are provided on the screen fixing member (1) and the screen support member (6), and the screen (10) is fixed at the working position through positioning pins under the combined clamping action of the screen support member (6) and the screen fixing member (1).

9. The height leveling fixture with adaptive stepless adjustment according to claim 1, characterized in that It further includes a clamping block fixing member (3). A groove matching the shape of the rear rectangular block two of the clamping block (7) is formed at the lower end of the clamping block fixing member (3). Threaded holes are formed at both ends of the upper surface of the clamping block fixing member (3), and it is detachably connected to the corresponding threaded holes on the component positioning plate by screws, playing a role in axially and vertically fixing the clamping block.

10. A method for using the height leveling fixture with adaptive stepless adjustment as described in claim 1, characterized in that It includes the following steps:

1. Place the component on the lifting table. The spring at the bottom of the lifting table is compressed and directly contacts the fixing substrate to generate a reaction force to jack up the component. The top of the rectangular block one of the clamping block protrudes and directly contacts the side surface of the component to axially fix the component. After the component is placed, the clamping block moves in the direction away from the component, and the spring on the side surface of the rectangular block two is compressed and directly contacts the side wall of the clamping groove to generate a reaction force to clamp and fix the component; 2. Align the positioning holes of the wire mesh (10) with the positioning pin holes of the wire mesh support (6), insert the positioning pins, align the positioning pin holes of the wire mesh fixing piece (1) with the positioning pins, and press down to fix the wire mesh in the working position; 3. When it is necessary to take out the component, push the clamping block in the direction away from the component to take out the component.

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