Solder paste brushing table

Abstract

The utility model provides a solder paste brushing table, which is characterized by comprising a base, a base plate and a base plate, the stand columns are fixed to the four corners of the base, and each stand column is provided with a sliding sleeve. Four corners of the placing frame are connected with the sliding sleeves and can move up and down along with the sliding sleeves; the connecting plate is fixed at the top ends of the two upright posts on the same side; a connecting plate is installed on the base, a self-locking device is installed below the connecting plate, buckles corresponding to the self-locking device are arranged on the two sides of the containing frame, a screen printing plate is placed on the containing frame and locked through a locking structure, a three-axis displacement platform is installed on the base, a positioning plate is installed on the three-axis displacement platform, and a plurality of positioning assemblies are connected to the positioning plate. The screen printing plate is fixed on the placing frame through the locking structure, after the circuit board is positioned by the lower positioning plate, the screen printing plate is manually descended to a designated position for tin paste brushing, the position of the screen printing plate does not need to be controlled in the tin paste brushing process, and the efficient and simple printing process is achieved.

Description

Technical Field

[0001] The utility model relates to a solder paste brushing station. Background Art

[0002] The solder paste printer is located at the forefront of the SMT production line. Its function is to apply solder paste at a 45-degree angle using a scraper to the pads of the circuit board, preparing for component soldering. With the rapid development of the electronics industry, the emergence of increasingly integrated chips has placed high demands on printing accuracy.

[0003] For example, the Chinese utility model patent with application number 201620956420.1 is named as a high-precision silk screen printing table, which includes a base, a working platform, a template, and a template fixing mechanism connecting the template to the base. A plurality of positioning parts are provided on the working platform, and a slide groove is provided on the positioning part. The locking screw passes through the slide groove of the positioning part, and the locking screw is threadedly connected to the working platform. A positioning pin is connected to each positioning part; one side of the template is flattened after being positioned by four positioning pins on the positioning column. During the process of applying solder paste, the other side needs to be manually controlled to stabilize the position, and an efficient and simple printing process cannot be achieved. Utility Model Content

[0004] The purpose of the utility model is to address the above-mentioned problems in the existing technology and propose a solder paste brushing station, which fixes the screen printing plate on the placement frame through a locking structure. After the positioning plate below positions the circuit board, it is manually lowered to the specified position to brush the solder paste. During the solder paste brushing process, there is no need to control the position of the screen printing plate, thereby realizing an efficient and simple printing process.

[0005] The purpose of the utility model can be achieved through the following technical solutions: A solder paste brush station, characterized in that it includes:

[0006] base;

[0007] The columns are fixed at the four corners of the base and each column has a sliding sleeve;

[0008] The placing frame has four corners connected to the sliding sleeve and can move up and down with the sliding sleeve;

[0009] A connecting plate, which is fixed on the top of the two columns on the same side;

[0010] A self-locking device is installed under the connecting plate, and buckles corresponding to the self-locking device are provided on both sides of the placement frame. A silk screen plate is placed on the placement frame and locked by a locking structure. A three-axis displacement platform is installed on the base, and a positioning plate is installed on the three-axis displacement platform. Several positioning components are connected to the positioning plate.

[0011] Furthermore, support legs are provided below the base.

[0012] Furthermore, a clamp is provided at the lower end of the column for limiting the lowering position of the placement frame. One end of the clamp is open and is threadedly connected to a torsion column. The torsion column is connected to a torsion block that tightens the torsion column inward and fixes it on the column.

[0013] Furthermore, the placement frame has handles on both sides.

[0014] Furthermore, the four corners of the base are provided with fixing grooves for the columns to be inserted and fixed.

[0015] Furthermore, the three-axis displacement platform model is Ouqiang XYR-LS125-LM.

[0016] Furthermore, the self-locking device model is a beetle self-locking device.

[0017] Furthermore, the positioning plate is provided with a plurality of positioning holes arranged in an array, and the positioning assembly includes a positioning screw and a plurality of positioning seats. The positioning seat is placed on the positioning plate and is provided with a long positioning groove. The positioning screw passes through the positioning groove and is threadedly connected and fixed to the positioning hole. The upper end of the positioning seat has a protrusion.

[0018] Further,

[0019] The locking structure is a fixing screw. The silk screen plate includes an A-size silk screen plate and a B-size silk screen plate, and the A-size silk screen plate is smaller than the B-size silk screen plate. The inner frame of the placement frame has four concave corners facing inward. The A-size silk screen plate and the B-size silk screen plate are all provided with a first screw hole at the four corners. The edge of the placement frame is provided with a second screw hole corresponding to the first screw hole of the A-size silk screen plate, and the concave corner is provided with a third screw hole corresponding to the first screw hole of the B-size silk screen plate. The fixing screw passes through the first screw hole, the second screw hole or the third screw hole to fix the A-size silk screen plate and the B-size silk screen plate on the placement frame.

[0020] Furthermore, the A-size screen printing plate and the B-size screen printing plate are provided with a plurality of mesh holes for solder paste to be leak-printed onto the circuit board.

[0021] Compared with the existing technology, the advantages of this application are: it fixes the silk screen printing plate on the placement frame through a locking structure, and after the positioning plate below positions the circuit board, it is manually lowered to the designated position to apply solder paste. During the solder paste application process, there is no need to control the position of the silk screen printing plate, thereby achieving an efficient and simple printing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the solder paste brushing station;

[0023] Figure 2 This is a schematic diagram of the top view of the solder paste brushing station;

[0024] Figure 3 is a schematic diagram of the positioning plate;

[0025] Figure 4 It is a schematic diagram of the clamp;

[0026] Figure 5 This is a schematic diagram of brushing solder paste to remove the silk screen;

[0027] Figure 6 It is a schematic diagram of the separation of the silk screen board;

[0028] Figure 7 It is a schematic diagram of the screen printing plate mesh;

[0029] Figure 8 This is a schematic diagram of the position when the placement frame and the positioning plate are against each other;

[0030] Figure 9 This is a schematic diagram of the A-size silk screen board installation;

[0031] Figure 10 This is a diagram of the installation of a size B silk screen board;

[0032] In the figure, 1. connecting plate; 11. self-locking device; 12. buckle; 13. column; 14. sliding sleeve; 15. clamp; 151. torsion block; 152. torsion column; 16. base; 161. fixing groove; 17. supporting foot; 18. three-axis displacement platform; 2. placement frame; 201. handle; 202. second screw hole; 203. third threaded hole; 204. inner concave angle; 21. fixing screw; 22. B-size silk screen plate; 221. first screw hole; 222. mesh; 23. A-size silk screen plate; 3. positioning plate; 31. positioning seat; 311. protrusion; 312. positioning groove; 32. positioning screw; 33. positioning hole. DETAILED DESCRIPTION

[0033] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention.

[0034] like Figure 1-10 As shown, a solder paste brushing station is characterized in that it includes:

[0035] Base 16;

[0036] The columns 13 are fixed to the four corners of the base 16 and each column 13 has a sliding sleeve 14;

[0037] The frame 2 is placed, and its four corners are connected to the sliding sleeve 14 and can move up and down with the sliding sleeve 14;

[0038] Connecting plate 1, which is fixed to the top of two columns 13 on the same side;

[0039] A self-locking device 11 is installed under the connecting plate 1, and buckles 12 corresponding to the self-locking device 11 are provided on both sides of the placement frame 2. A silk screen plate 22 is placed on the placement frame 2 and locked by a locking structure. A three-axis displacement platform 18 is installed on the base 16, and a positioning plate 3 is installed on the three-axis displacement platform 18. Several positioning components are connected to the positioning plate 3.

[0040] Furthermore, support legs 17 are provided below the base 16 .

[0041] Furthermore, a clamp 15 is provided at the lower end of the column 13 for limiting the lowering position of the placement frame 2. One end of the clamp 15 is open and is threadedly connected to a torsion column 152. The torsion column 152 is connected to a torsion block 151 that tightens the torsion column 152 inward and fixes it on the column 13.

[0042] In the above structure, the clamp 15 is used to limit the position of the placement frame on the column 13 to be lowered. After the position is determined, the torsion block 151 is rotated inward so that the torsion column 152 tightens the clamp 15 so that the clamp 15 is positioned on the column 13. Finally, the position of the clamp 15 is slightly higher than the position of the positioning component for installing the circuit board, which makes it convenient for the three-axis displacement platform 18 to fine-tune the position of the circuit board corresponding to the mesh 222 of the silk screen plate 22.

[0043] Furthermore, the placing frame 2 has handles 201 on both sides. The handles 201 are used for manual grasping to facilitate operation.

[0044] Furthermore, the base 16 is provided with fixing slots 161 at the four corners for the columns 13 to be inserted and fixed. The fixing seat is used to insert the columns 13 to make the connection more stable.

[0045] Furthermore, the three-axis displacement platform 18 is an Ouqiang XYR-LS125-LM. The three-axis displacement platform 18 is mainly used to move the XYZ axes after the screen printing plate 22 is lowered to a specified position so that the position where the solder paste is applied to the circuit board corresponds to the mesh 222 on the screen printing plate 22.

[0046] Furthermore, the self-locking device 11 is a beetle self-locking device.

[0047] In the above structure, the solder paste brushing station realizes the up and down movement of the placement frame on the column 13 through the sliding sleeve 14, so that the silk screen plate 22 fixed on the placement frame can be close to the circuit board installed on the positioning component, so as to brush the solder paste. When the circuit board needs to be replaced, the placement frame is moved upward to lock the buckle 12 with the self-locking device 11. After the replacement is completed, the placement frame buckle 12 is pressed upward to separate from the self-locking device 11 and then drop to the corresponding plane to continue twisting and brushing the solder paste.

[0048] like Figure 3As shown, further, the positioning plate 3 is provided with a plurality of positioning holes 33 arranged in an array, and the positioning assembly includes a positioning screw 32 and a plurality of positioning seats 31, the positioning seat 31 is placed on the positioning plate 3 and the positioning seat 31 is provided with a long positioning groove 312, the positioning screw 32 passes through the positioning groove 312 and is threadedly connected and fixed with the positioning hole 33, and the upper end of the positioning seat 31 has a protrusion 311.

[0049] In the above structure, the position of the positioning component is fixed according to the size of the actual circuit board and is arranged in an X shape. The positioning screw 32 passes through the positioning slot 312 and is fixedly connected to the positioning hole 33. The four corners of the circuit board are generally provided with connection holes corresponding to the protrusions 311 of the positioning seat 31, so that the circuit board is positioned on the positioning seat 31 with a determined position.

[0050] like Figure 6-10 As shown, further, the locking structure is a fixing screw 21, the silk screen plate includes an A-size silk screen plate 23 and a B-size silk screen plate 22, and the A-size silk screen plate 23 is smaller than the B-size silk screen plate 22, the inner frame of the placement frame 2 has four concave corners 204 facing inward, and the four corners of the A-size silk screen plate 23 and the B-size silk screen plate 22 are all provided with a first screw hole 221, the edge of the placement frame 2 is provided with a second screw hole 202 corresponding to the first screw hole 221 of the A-size silk screen plate 23, and the concave corner 204 is provided with a third screw hole 203 corresponding to the first screw hole 221 of the B-size silk screen plate 22, and the fixing screw 21 passes through the first screw hole 221, the second screw hole 202 or the third screw hole 203 to fix the A-size silk screen plate 23 and the B-size silk screen plate 22 on the placement frame 2.

[0051] In the above structure, if Figure 8 As shown, after the placement frame 2 is lowered, its inner concave corner 204 can abut against the four corners of the positioning plate 3, as shown in FIG. Figure 9-10 As shown, two sizes of silk screen plates can be set to adapt to different types of circuit boards. The first screw hole 221 of the A-size silk screen plate 23 corresponds to the third screw hole 203 of the inner concave corner 204, and the first screw hole 221 of the B-size silk screen plate 22 corresponds to the second screw hole 202.

[0052] like Figure 7 As shown, further, the A-size screen printing plate 23 and the B-size screen printing plate 22 are provided with a plurality of mesh holes 222 for solder paste to be leak-printed onto the circuit board.

[0053] The mesh 222 is used to prevent solder paste from being printed onto the circuit board. When the placement frame descends to the position limited by the clamp 15, the three-axis displacement platform 18 will move forward, backward, left and right to fine-tune the position of the circuit board, so that the circuit board is moved to the correct position, and then moved upward to bring the circuit board close to the silk screen 22, and finally the solder paste is applied to complete the process.

[0054] Based on the above structural description, Figure 9 As shown, when a small-sized screen printing plate is required, the present application selects an A-sized screen printing plate 23, and the fixing method is to fix the A-sized screen printing plate 23 by threading the fixing screws 21 to the third screw holes 203 of the inner concave corner 204, so as to perform the subsequent lowering solder paste brushing process;

[0055] like Figure 10 As shown, when a large-sized screen printing plate is required, a B-sized screen printing plate 22 is selected, and the fixing method is to fix the B-sized screen printing plate 22 by threading the fixing screws 21 and the second screw holes 202 correspondingly, and then perform the subsequent solder paste brushing process.

[0056] The technical solution of the above-mentioned utility model provides a solution that is significantly different from the existing technology to address the technical problem that the existing technology solution is too single. The parts not involved in the technical solution of this application are the same as the existing technology or can be implemented by using the existing technology, and will not be repeated here.

[0057] The technical solutions in the above embodiments have clearly and completely described the contents of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

Claims

1. A solder paste brushing station, characterized in that it include: base; The columns are fixed at the four corners of the base and each column has a sliding sleeve; The placing frame has four corners connected to the sliding sleeve and can move up and down with the sliding sleeve; A connecting plate, which is fixed on the top of the two columns on the same side; A self-locking device is installed under the connecting plate, and buckles corresponding to the self-locking device are provided on both sides of the placement frame. A silk screen plate is placed on the placement frame and locked by a locking structure. A three-axis displacement platform is installed on the base, and a positioning plate is installed on the three-axis displacement platform. Several positioning components are connected to the positioning plate.

2. The solder paste brushing station according to claim 1, characterized in that: Support legs are provided below the base.

3. The solder paste brushing station according to claim 1, characterized in that: The lower end of the column is provided with a clamp for limiting the lowering position of the placement frame. One end of the clamp is open and is threadedly connected to a torsion column. The torsion column is connected to a torsion block that tightens the torsion column inwardly and fixes it on the column.

4. The solder paste brushing station according to claim 1, characterized in that: Both sides of the placement frame are provided with handles.

5. The solder paste brushing station according to claim 2, characterized in that: The four corners of the base are provided with fixing grooves for the columns to be inserted and fixed.

6. The solder paste brushing station according to claim 1, characterized in that: The three-axis displacement platform model is Ouqiang XYR-LS125-LM.

7. The solder paste brushing station according to claim 1, characterized in that: The self-locking device model is a beetle self-locking device.

8. The solder paste brushing station according to claim 1, characterized in that: The positioning plate is provided with a plurality of positioning holes arranged in an array, and the positioning assembly includes a positioning screw and a plurality of positioning seats. The positioning seat is placed on the positioning plate and is provided with a long positioning groove. The positioning screw passes through the positioning groove and is threadedly connected and fixed to the positioning hole. The upper end of the positioning seat has a convex point.

9. The solder paste brushing station according to claim 1, characterized in that: The locking structure is a fixing screw. The silk screen plate includes an A-size silk screen plate and a B-size silk screen plate, and the A-size silk screen plate is smaller than the B-size silk screen plate. The inner frame of the placement frame has four concave corners facing inward. The A-size silk screen plate and the B-size silk screen plate are all provided with a first screw hole at the four corners. The edge of the placement frame is provided with a second screw hole corresponding to the first screw hole of the A-size silk screen plate, and the concave corner is provided with a third screw hole corresponding to the first screw hole of the B-size silk screen plate. The fixing screw passes through the first screw hole, the second screw hole or the third screw hole to fix the A-size silk screen plate and the B-size silk screen plate on the placement frame.

10. The solder paste brushing station according to claim 9, characterized in that: The A-size screen printing plate and the B-size screen printing plate are provided with a plurality of mesh holes for solder paste to be leak-printed onto the circuit board.

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